Ubuntu

When Desktop Effects enabled

Show window menu

Alt + Mouse right click

All hotkeys for Ubuntu

When Desktop Effects enabled
Enables the ‘scale’ effect, it shows all windows from all workspaces

Super + A

New shortcuts
Display files and folders

Super + F

New shortcuts
Display media files

Super + V

When Desktop Effects enabled
Invert colours for the whole screen

Super + M

New shortcuts
Open Trash can

Super + T

New shortcuts
Display hidden files in file manager

Ctrl + H

New shortcuts
Lock the PC

Super + L

When Desktop Effects enabled
Toggles ‘Show Desktop’

Ctrl + Super + D

New shortcuts
Open terminal

Ctrl + Alt + T

Desktop
Open Applications menu

Alt + F1

Desktop
Run an application by typing its name

Alt + F2

Desktop
Take a screenshot of whole screen

Print Screen

Desktop
Take a screenshot of the current windows

Alt + Print Screen

Desktop
Take a screenshot of a selected rectangle on the screen

↑   Shift + Print Screen

Windows
Switch between open windows

Alt + ⭾ Tab

When Desktop Effects enabled
Switch between currently-open windows across all workspaces.

Ctrl + Alt + ⭾ Tab

When Desktop Effects enabled
Spins the ‘cube’ that your workspaces reside on, allowing you to select the workspace you wish to use

Ctrl + Alt + ←  →

Windows
Move current window

Alt + F7

Windows
Resize current window

Alt + F8

Windows
Minimize current window

Alt + F9

Windows
Maximize current window

Alt + F10

Windows
Bring up window menu with with ‘Always on Top’ and ‘Minimize’ and ‘Maximize’ and above commands

Alt + Space

Windows
Return window to "normal" or previous size

Alt + F5

Windows
Close the window

Alt + F4

When Desktop Effects enabled
Enables an ‘expose’ like feature that presents you with all the windows you currently have open, allowing you to select the one you wish to give focus to

Ctrl + Alt +

When Desktop Effects enabled
Unfolds your workspace cube allowing you to see more than one of your workspaces at once, using the left and right cursor keys with this active will allow you to select the workspace you wish to use

Ctrl + Alt +

When Desktop Effects enabled
Enables the ‘scale’ effect, it shows all windows from the current workspace

Super + W

When Desktop Effects enabled
Invert colours of the focused window

Super + N

When Desktop Effects enabled
Zooms in on the screen

Super + Mouse wheel up and down

When Desktop Effects enabled
Select a region to zoom into, using a rectangle.

Super + Mouse middle click

When Desktop Effects enabled
Resize focused window

Alt + Mouse middle click

When Desktop Effects enabled
Move focused window

Alt + Mouse left click

When Desktop Effects enabled
Show window menu

Alt + Mouse right click

When Desktop Effects enabled
Zoom out, show workspace switcher

Super + S

Common application shortcuts
Copy the selected text/object

Ctrl + C

Common application shortcuts
Cut the selected text/object

Ctrl + X

Common application shortcuts
Paste/insert the selected text/object

Ctrl + V

Common application shortcuts
Select all text

Ctrl + A

Common application shortcuts
Make the selected text bold

Ctrl + B

Common application shortcuts
Make the selected text italic

Ctrl + I

Common application shortcuts
Underline the selected text

Ctrl + U

Common application shortcuts
Open a new document or window

Ctrl + N

Common application shortcuts
Save the current document

Ctrl + S

Common application shortcuts
Open another document

Ctrl + O

Common application shortcuts
Print the current document

Ctrl + P

Common application shortcuts
Undo the last change you made

Ctrl + Z

Common application shortcuts
Redo a change that you just undid

Ctrl + ↑   Shift + Z

System shortcuts
Restart the computer immediately, without saving open files

Ctrl + Alt + Del

System shortcuts
(numeric keypad) Rotate through supported screen resolutions

Ctrl + Alt + +

System shortcuts
(numeric keypad)  Rotate backwards through supported screen resolutions

Ctrl + Alt + -

Similar combinations for other applications


Openbox
Resize a window. The window is resized towards the edge that the mouse is nearest to. So use Alt + Right mouse button in the top right corner of a window to resize that corner
General

Alt + Mouse right click


Substance Painter
Camera zoom
Mouse shortcuts

Alt + Mouse right click


PyCharm 2018.2
Show a pop-up window with the documentation for the symbol at the caret.
Advanced editing

Alt + Mouse right click


Tibia
(Classic Control off/on) Start or to stop an attack to a monster or character
Game Window

Alt + Mouse right click


Autodesk Stingray
mouse
Navigate in the Level Viewport

Alt + Mouse right click +


Autodesk Stingray
Zoom in the timeline
Story editor

Alt + Mouse right click


AI War Classic
(on item in build queue) send item to back of queue
Mouse

Alt + Mouse right click


Escape from Tarkov
Switch reticles in your red dot sight
General

Alt + Mouse right click


Nuke
Rotate viewer on x,y axis
3D compositing viewer

Alt + Mouse right click


League of Legends
Command Pet (E.g. TibbersSquare Tibbers)
General

Alt + Mouse right click


Paint.NET
Intersect selection mode
Magic Wand tool

Alt + Mouse right click