Undo.

`Ctrl` + `Z`

All hotkeys for Microsoft Projects 2016 (Windows)

File Management Open a project file (display the Open dialog box).	`Ctrl` + `F12`
File Management Open a project file (display the Open Tab in the Backstage view).	`Ctrl` + `O`
File Management Save a project file.	`Ctrl` + `S`
File Management Create a new project.	`Ctrl` + `N`
File Management Print a file (display the Print Tab in the Backstage view).	`Ctrl` + `P`
Working with dialog boxes Display the Open dialog box.	`Ctrl` + `F12`
Working with dialog boxes Display the Open Tab in the Backstage view.	`Ctrl` + `O`
Working with dialog boxes Display the Save As dialog box.	`F12`
Working with dialog boxes Open the selected folder or file.	`Enter`
Working with dialog boxes Open the folder one level above the open folder.	`Bkspace`
Working with dialog boxes Delete the selected folder or file.	`Delete`
Working with dialog boxes Display a shortcut menu for a selected item such as a folder or file.	`Shift` + `F10`
Working with dialog boxes Move forward through options	`Tab`
Working with dialog boxes Move back through options	`Shift` + `Tab`
Working with dialog boxes Open the Look in list	`F4` or `Alt` + `1`
Working with dialog boxes Move to the next option or option group.	`Tab`
Working with dialog boxes Move to the previous option or option group.	`Shift` + `Tab`
Working with dialog boxes Switch to the next Tab in a dialog box.	`Ctrl` + `Tab`
Working with dialog boxes Switch to the previous Tab in a dialog box.	`Ctrl` + `Shift` + `Tab`
Working with dialog boxes Move between options in an open drop-down list, or between options in a group of options.	`Arrow Keys`
Working with dialog boxes Perform the action assigned to the selected button; select or clear the selected check box.	`Insert`
Working with dialog boxes Open the list if it is closed and move to that option in the list.	`First letter of an option in a drop-down list`
Working with dialog boxes Select an option; select or clear a check box.	`Alt` + `The letter underlined in an option`
Working with dialog boxes Open a selected drop-down list.	`Alt` + `Down Arrow`
Working with dialog boxes Close a selected drop-down list; cancel a command and close a dialog box.	`Esc`
Working with dialog boxes Perform the action assigned to a default button in a dialog box.	`Enter`
Working with dialog boxes Move between fields at the bottom of a form.	`Arrow Keys`
Working with dialog boxes Move into Tables at the bottom of a form.	`Alt` + `1` (left) or `Alt` + `2` (right)
Working with dialog boxes Move to the next task or resource.	`Enter`
Working with dialog boxes Move to the previous task or resource.	`Shift` + `Enter`
Navigation Shortcuts Move to the beginning of the entry.	`Home`
Navigation Shortcuts Move to the end of the entry.	`End`
Navigation Shortcuts Move one character to the left or right, respectively.	`Left Arrow` or `Right Arrow`
Navigation Shortcuts Move one word to the left.	`Ctrl` + `Left Arrow`
Navigation Shortcuts Move one word to the right.	`Ctrl` + `Right Arrow`
Navigation Shortcuts Select or cancel selection one character to the left.	`Shift` + `Left Arrow`
Navigation Shortcuts Select or cancel selection one character to the right.	`Shift` + `Right Arrow`
Navigation Shortcuts Select or cancel selection one word to the left.	`Ctrl` + `Shift` + `Left Arrow`
Navigation Shortcuts Select or cancel selection one word to the right.	`Ctrl` + `Shift` + `Right Arrow`
Navigation Shortcuts Select from the insertion point to the beginning of the entry.	`Shift` + `Home`
Navigation Shortcuts Select from the insertion point to the end of the entry.	`Shift` + `End`
Working with Table Move to the next cell.	`Tab`
Working with Table Move to the preceding cell.	`Shift` + `Tab`
Working with Table Move to the next row.	`Down Arrow`
Working with Table Move to the preceding row.	`Up Arrow`
Working with Table Insert a Tab in a cell.	`Ctrl` + `Tab`
Working with Table Start a new paragraph.	`Enter`
Working with Table Add a new row at the bottom of the Table.	`Tab`
Moving around cells/text Move one character to the left.	`Left Arrow`
Moving around cells/text Move one character to the right.	`Right Arrow`
Moving around cells/text Move one line up.	`Up Arrow`
Moving around cells/text Move one line down.	`Down Arrow`
Moving around cells/text Move one word to the left.	`Ctrl` + `Left Arrow`
Moving around cells/text Move one word to the right.	`Ctrl` + `Right Arrow`
Moving around cells/text Move to the end of a line.	`End`
Moving around cells/text Move to the beginning of a line.	`Home`
Moving around cells/text Move up one paragraph.	`Ctrl` + `Up Arrow`
Moving around cells/text Move down one paragraph.	`Ctrl` + `Down Arrow`
Moving around cells/text Move to the end of a text box.	`Ctrl` + `End`
Moving around cells/text Move to the beginning of a text box.	`Ctrl` + `Home`
Access and Use Action Display the menu or message for an action. If more than one action is present, switch to the next action and display its menu or message.	`Alt` + `Shift` + `F10`
Access and Use Action Select the next item on the action menu.	`Down Arrow`
Access and Use Action Select the previous item on the action menu.	`Up Arrow`
Access and Use Action Perform the action for the selected item on the action menu.	`Enter`
Access and Use Action Close the action menu or message.	`Esc`
Network Diagram Move to a different Network Diagram box.	`Arrow Keys`
Network Diagram Add Network Diagram boxes to the selection.	`Shift` + `Arrow Keys`
Network Diagram Move a Network Diagram box.	`Ctrl` + `Arrow Keys`
Network Diagram NOTE: You need to set manual positioning first. Select the box you want to move. Click Format, and then click Layout. Click Allow manual box positioning.
Network Diagram Move to the top Network Diagram box in the view or project.	`Ctrl` + `Home` or `Shift` + `Ctrl` + `Home`
Network Diagram Move to the lowest Network Diagram box in the project.	`Ctrl` + `End` or `Shift` + `Ctrl` + `End`
Network Diagram Move to the leftmost Network Diagram box in the project.	`Home` or `Shift` + `Home`
Network Diagram Move to the rightmost Network Diagram box in the project.	`End` or `Shift` + `End`
Network Diagram Move up one window height.	`PgUp` or `Shift` + `PgUp`
Network Diagram Move down one window height.	`PgDn` or `Shift` + `PgDn`
Network Diagram Move left one window width.	`Ctrl` + `PgUp` or `Shift` + `Ctrl` + `PgUp`
Network Diagram Move right one window width.	`Ctrl` + `PgDn` or `Shift` + `Ctrl` + `PgDn`
Network Diagram Select the next field in the Network Diagram box.	`Enter` or `Tab`
Network Diagram Select the previous field in the Network Diagram box.	`Shift` + `Enter`
Working with OfficeArt Objects Nudge the shape up, down, right, or left.	`Arrow Keys`
Working with OfficeArt Objects Increase the shape’s width by 10%.	`Shift` + `Right Arrow`
Working with OfficeArt Objects Decrease the shape’s width by 10%.	`Shift` + `Left Arrow`
Working with OfficeArt Objects Increase the shape’s height by 10%.	`Shift` + `Up Arrow`
Working with OfficeArt Objects Decrease the shape’s height by 10%.	`Shift` + `Down Arrow`
Working with OfficeArt Objects Increase the shape’s width by 1%.	`Ctrl` + `Shift` + `Right Arrow`
Working with OfficeArt Objects Decrease the shape’s width by 1%.	`Ctrl` + `Shift` + `Left Arrow`
Working with OfficeArt Objects Increase the shape’s height by 1%.	`Ctrl` + `Shift` + `Up Arrow`
Working with OfficeArt Objects Decrease the shape’s height by 1%.	`Ctrl` + `Shift` + `Down Arrow`
Working with OfficeArt Objects Rotate the shape 15 degrees to the right.	`Alt` + `Right Arrow`
Working with OfficeArt Objects Rotate the shape 15 degrees to the left.	`Alt` + `Left Arrow`
Working with OfficeArt Objects Select an object (with text selected inside the object).	`Esc`
Working with OfficeArt Objects Select an object (with an object selected).	`Tab` or `Shift` + `Tab` until the object you want is selected
Working with OfficeArt Objects Select text within an object (with an object selected).	`Enter`
Working with OfficeArt Objects Select multiple shapes	Press and hold `Ctrl` while you click the shapes
Working with OfficeArt Objects Select multiple shapes with text	Press and hold `Shift` while you click the shapes
Working with OfficeArt Objects Cut selected object.	`Ctrl` + `X`
Working with OfficeArt Objects Copy selected object.	`Ctrl` + `C`
Working with OfficeArt Objects Paste cut or copied object.	`Ctrl` + `V`
Working with OfficeArt Objects Paste special.	`Ctrl` + `Alt` + `V`
Working with OfficeArt Objects Copy formatting only.	`Ctrl` + `Shift` + `C`
Working with OfficeArt Objects Paste formatting only.	`Ctrl` + `Shift` + `V`
Working with OfficeArt Objects Paste special.	`Ctrl` + `Alt` + `V`
Working with OfficeArt Objects Group shapes, pictures, or WordArt.	`Ctrl` + `G` after you select the items that you want to group
Working with OfficeArt Objects Ungroup shapes, pictures, or WordArt.	`Ctrl` + `Shift` + `G` after you select the group that you want to ungroup
Working with OfficeArt Objects Undo the last action.	`Ctrl` + `Z`
Working with OfficeArt Objects Redo the last action.	`Ctrl` + `Y`
Working with OfficeArt Objects Add next object to a multi-selection.	`Ctrl` + `Click`
Working with OfficeArt Objects Adds next object to a multi-selection; allows clicking on textbox text to add the textbox to the multi-selection.	`Shift` + `Click`
Working with OfficeArt Objects Collapse selection.	`Esc`
Working with OfficeArt Objects Select all text.	`Ctrl` + `A`
Working with OfficeArt Objects Delete one word to the left.	`Ctrl` + `Bkspace`
Working with OfficeArt Objects Delete one word to the right.	`Ctrl` + `Delete`
Working with OfficeArt Objects Undo.	`Ctrl` + `Z`
Working with OfficeArt Objects Redo.	`Ctrl` + `Y`
Working with OfficeArt Objects Move one word to the left.	`Ctrl` + `Left Arrow`
Working with OfficeArt Objects Move one word to the right.	`Ctrl` + `Right Arrow`
Working with OfficeArt Objects Move to the beginning of the line.	`Home`
Working with OfficeArt Objects Move to the end of the line.	`End`
Working with OfficeArt Objects Move up one paragraph.	`Ctrl` + `Up Arrow`
Working with OfficeArt Objects Move down one paragraph.	`Ctrl` + `Down Arrow`
Working with OfficeArt Objects Move to the beginning of the object’s text.	`Ctrl` + `Home`
Working with OfficeArt Objects Move to the end of the object’s text	`Ctrl` + `End`
Navigate Views and Windows Activate the entry bar to edit text in a field.	`F2`
Navigate Views and Windows Activate the menu bar.	`F10` or `Alt`
Navigate Views and Windows Activate the project control menu.	`Alt` + `Spacebar`
Navigate Views and Windows Activate the split bar.	`Shift` + `F6`
Navigate Views and Windows Close the program window.	`Alt` + `F4`
Navigate Views and Windows Display all filtered tasks or all filtered resources.	`F3`
Navigate Views and Windows Display the Field Settings dialog box.	`Alt` + `F3`
Navigate Views and Windows Open a new window.	`Shift` + `F11`
Navigate Views and Windows Reduce a selection to a single field.	`Shift` + `Bkspace`
Navigate Views and Windows Reset sort order to ID order and turn off grouping.	`Shift` + `F3`
Navigate Views and Windows Select a drawing object.	`F6`
Navigate Views and Windows Display task information.	`Shift` + `F2`
Navigate Views and Windows Display resource information.	`Shift` + `F2`
Navigate Views and Windows Display assignment information.	`Shift` + `F2`
Navigate Views and Windows Turn on or off the Add To Selection mode.	`Shift` + `F8`
Navigate Views and Windows Turn on or off Auto Calculate.	`Ctrl` + `F9`
Navigate Views and Windows Turn on or off the Extend Selection mode.	`F8`
Navigate Views and Windows Move left, right, up, or down to view different pages in the Print Preview window.	`Alt` + `Arrow Keys`
Outline Operations Hide subtasks.	`Alt` + `Shift` + `NumPad -`
Outline Operations Indent the selected task.	`Alt` + `Shift` + `Right Arrow`
Outline Operations Show subtasks.	`Alt` + `Shift` + `=` or `Alt` + `Shift` + `NumPad +`
Outline Operations Show all tasks.	`Alt` + `Shift` + `NumPad *`
Outline Operations Outdent the selected task.	`Alt` + `Shift` + `Left Arrow`
Sheet View Cancel an entry.	`Esc`
Sheet View Clear or reset the selected field.	`Ctrl` + `Delete`
Sheet View Copy the selected data.	`Ctrl` + `C`
Sheet View Cut the selected data.	`Ctrl` + `X`
Sheet View Delete the selected data.	`Delete`
Sheet View Delete row that has a selected cell.	`Ctrl` + `NumPad -`
Sheet View Fill down.	`Ctrl` + `D`
Sheet View Display the Find dialog box.	`Ctrl` + `F` or `Shift` + `F5`
Sheet View In the Find dialog box, continue to the next instance of the search results.	`Shift` + `F4`
Sheet View Use the Go To command (Edit menu).	`F5`
Sheet View Link tasks.	`Ctrl` + `F2`
Sheet View Paste the copied or cut data.	`Ctrl` + `V`
Sheet View Reduce the selection to one field.	`Shift` + `Bkspace`
Sheet View Undo the last action.	`Ctrl` + `Z`
Sheet View Unlink tasks.	`Ctrl` + `Shift` + `F2`
Sheet View Set the task to manually schedule	`Ctrl` + `Shift` + `M`
Sheet View Set the task to auto schedule	`Ctrl` + `Shift` + `A`
Sheet View Move to the beginning of a project (timescale).	`Alt` + `Home`
Sheet View Move to the end of a project (timescale).	`Alt` + `End`
Sheet View Move the timescale left.	`Alt` + `Left Arrow`
Sheet View Move the timescale right.	`Alt` + `Right Arrow`
Sheet View Move to the first field in a row.	`Home` or `Ctrl` + `Left Arrow`
Sheet View Move to the first row.	`Ctrl` + `Up Arrow`
Sheet View Move to the first field of the first row.	`Ctrl` + `Home`
Sheet View Move to the last field in a row.	End or `Ctrl` + `Right Arrow`
Sheet View Move to the last field of the last row.	`Ctrl` + `End`
Sheet View Move to the last row.	`Ctrl` + `Down Arrow`
Move in Side Pane Move focus between the side pane and the view on the right side.	`Ctrl` + `Tab` or `Ctrl` + `Shift` + `Tab`
Move in Side Pane Select different controls in the side pane if focus is in the side pane.	`Tab`
Move in Side Pane Select or clear check boxes and option buttons if focus is in the side pane.	`Spacebar`
Move in Side Pane Extend the selection down one page.	`Shift` + `PgDn`
Move in Side Pane Extend the selection up one page.	`Shift` + `PgUp`
Move in Side Pane Extend the selection down one row.	`Shift` + `Down Arrow`
Move in Side Pane Extend the selection up one row.	`Shift` + `Up Arrow`
Move in Side Pane Extend the selection to the first field in a row.	`Shift` + `Home`
Move in Side Pane Extend the selection to the last field in a row.	`Shift` + `End`
Move in Side Pane Extend the selection to the start of the information.	`Ctrl` + `Shift` + `Home`
Move in Side Pane Extend the selection to the end of the information.	`Ctrl` + `Shift` + `End`
Move in Side Pane Extend the selection to the first row.	`Ctrl` + `Shift` + `Up Arrow`
Move in Side Pane Extend the selection to the last row.	`Ctrl` + `Shift` + `Down Arrow`
Move in Side Pane Extend the selection to the first field of the first row.	`Ctrl` + `Shift` + `Home`
Move in Side Pane Extend the selection to the last field of the last row.	`Ctrl` + `Shift` + `End`
Move in Side Pane Select all rows and columns.	`Ctrl` + `Shift` + `Spacebar`
Move in Side Pane Select a column.	`Ctrl` + `Spacebar`
Move in Side Pane Select a row.	`Shift` + `Spacebar`
Move in Side Pane Move within a selection down one field.	`Enter`
Move in Side Pane Move within a selection up one field.	`Shift` + `Enter`
Move in Side Pane Move within a selection right one field.	`Tab`
Move in Side Pane Move within a selection left one field.	`Shift` + `Tab`
Select and Edit in Entry bar Accept an entry.	`Enter`
Select and Edit in Entry bar Cancel an entry.	`Esc`
Select and Edit in Entry bar Delete one character to the left.	`Bkspace`
Select and Edit in Entry bar Delete one character to the right.	`Delete`
Select and Edit in Entry bar Delete one word to the right.	`Ctrl` + `Delete`
Select and Edit in Entry bar Extend the selection to the end of the text.	`Shift` + `End`
Select and Edit in Entry bar Extend the selection to the start of the text.	`Shift` + `Home`
Select and Edit in Entry bar Turn on or off Overtype mode.	`Insert`
Working with Tim[Esc]ale Move the timescale left one page.	`Alt` + `PgUp`
Working with Tim[Esc]ale Move the timescale right one page.	`Alt` + `PgDn`
Working with Tim[Esc]ale Move the timescale to beginning of the project.	`Alt` + `Home`
Working with Tim[Esc]ale Move the timescale to end of the project.	`Alt` + `End`
Working with Tim[Esc]ale Scroll the timescale left.	`Alt` + `Left Arrow`
Working with Tim[Esc]ale Scroll the timescale right.	`Alt` + `Right Arrow`
Working with Tim[Esc]ale Show smaller time units.	`Ctrl` + `NumPad /`
Working with Tim[Esc]ale Show larger time units.	`Ctrl` + `NumPad *`
Switching between Windows Switch to the next window.	`Alt` + `Tab`
Switching between Windows Switch to the previous window.	`Alt` + `Shift` + `Tab`
Switching between Windows Close the active window.	`Ctrl` + `W` or `Ctrl` + `F4`
Switching between Windows Restore the size of the active window after you maximize it.	`Ctrl` + `F5`
Switching between Windows Move to a task pane from another pane in the program window (clockwise direction). You may need to press F6 more than once.	`F6`
Switching between Windows Move to a pane from another pane in the program window (counterclockwise direction).	`Shift` + `F6`
Switching between Windows When more than one window is open, switch to the next window.	`Ctrl` + `F6`
Switching between Windows Switch to the previous window.	`Ctrl` + `Shift` + `F6`
Switching between Windows Maximize or restore a selected window.	`Ctrl` + `F10`
Switching between Windows Copy a picture of the screen to the Clipboard.	`PrtScn`
Switching between Windows Copy a picture of the selected window to the Clipboard.	`Alt` + `PrtScn`