Undo last polygon pick

`Backspace`

All hotkeys for Tekla Structures 14.0 (Windows)

Parts Wire frame	`Ctrl` + `1`
Parts Shaded wire frame	`Ctrl` + `2`
Parts Rendered (black)	`Ctrl` + `3`
Parts Rendered	`Ctrl` + `4`
Parts Rendered (dark colors)	`Ctrl` + `5`
Component parts Wire frame	`Shift` + `1`
Component parts Shaded wire frame	`Shift` + `2`
Component parts Rendered (black)	`Shift` + `3`
Component parts Rendered	`Shift` + `4`
Component parts Rendered (dark colors)	`Shift` + `5`
General shortcuts Open	`Ctrl` + `o`
General shortcuts Save	`Ctrl` + `s`
General shortcuts Properties	`Alt` + `Enter`
General shortcuts Undo	`Ctrl` + `z`
General shortcuts Redo	`Ctrl` + `y`
General shortcuts Interrupt	`Esc`
General shortcuts Repeat the last command	`Enter`
General shortcuts Copy	`Ctrl` + `c`
General shortcuts Move	`Ctrl` + `m`
General shortcuts Delete	`Delete`
General shortcuts Drag and drop	`d`
General shortcuts Pan	`p`
General shortcuts Middle button pan	`Shift` + `m`
General shortcuts Move right	`x`
General shortcuts Move left	`z`
General shortcuts Move down	`y`
General shortcuts Move up	`w`
General shortcuts Center by cursor	`Insert`
General shortcuts Zoom original	`Home`
General shortcuts Zoom in/out	`Page Up` / `Page Down`
General shortcuts Zoom previous	`End`
General shortcuts Rotate using mouse	`Ctrl` + `r`
General shortcuts Rotate using keyboard	`Ctrl` + `Arrow Keys` , `Shift` + `Arrow Keys`
General shortcuts Ortho	`o`
General shortcuts Relative coordinate input	`@` , `R`
General shortcuts Absolute coordinate input	`$` , `a`
General shortcuts Next position / Previous position	`Tab` / `Shift` + `Tab`
General shortcuts Xsnap	`t`
General shortcuts SmartSelect	`s`
General shortcuts Select filter	`Ctrl` + `g`
General shortcuts Add to selection	`Shift`
General shortcuts Toggle selection	`Ctrl`
General shortcuts Lock X, Y or Z coordinates	X, Y or Z
General shortcuts Select all select switch	`F2`
General shortcuts Select parts select switch	`F3`
General shortcuts Snap to reference lines/points	`F4`
General shortcuts Snap to geometry lines/points	`F5`
General shortcuts Snap to nearest points	`F6`
General shortcuts Snap to any position	`F7`
General shortcuts Advanced options	`Ctrl` + `e`
General shortcuts Inquire object	`Shift` + `i`
General shortcuts Free measure	`f`
Modeling shortcuts Create new model	`Ctrl` + `n`
Modeling shortcuts Open the Views list	`Ctrl` + `i`
Modeling shortcuts Create clip plane	`Shift` + `x`
Modeling shortcuts Rollover highlight	`h`
Modeling shortcuts Set view rotation point	`v`
Modeling shortcuts Autorotate	`Shift` + R, SHIFT + `t`
Modeling shortcuts Disable view rotation	`F8`
Modeling shortcuts 3D / Plane	`Ctrl` + `p`
Modeling shortcuts Fly (in perspective views)	`Shift` + `f`
Modeling shortcuts Select all	`Ctrl` + `a`
Modeling shortcuts Select assembly	`Alt` + object
Modeling shortcuts Hide object	`Shift` + `h`
Modeling shortcuts Snapshot	`F9` , `F10` , `F11` , `F12`
Modeling shortcuts Undo last polygon pick	`Backspace`
Modeling shortcuts Finish polygon input	`Space`
Modeling shortcuts Open component catalog	`Ctrl` + `f`
Modeling shortcuts Create AutoConnection	`Ctrl` + `j`
Modeling shortcuts Phase manager	`Ctrl` + `h`
Modeling shortcuts Clash check	`Shift` + `c`
Modeling shortcuts Drawing Wizard	`Ctrl` + `w`
Modeling shortcuts Drawing list	`Ctrl` + `l`
Modeling shortcuts Clone drawing	`Ctrl` + `d`
Modeling shortcuts Print drawings	`Shift` + `p`
Modeling shortcuts Create report	`Ctrl` + `b`
Drawing shortcuts Associative symbol	`Shift` + `a`
Drawing shortcuts Black and white drawing	`b`
Drawing shortcuts Ghost outline	`Shift` + `g`
Drawing shortcuts Open next drawing / open previous drawing	`Ctrl` + `Page Down` / `Ctrl` + `Page Up`
Drawing shortcuts Create an orthogonal dimension	`g`
User Coordinate System (UCS) shortcuts Set coordinate system origin	`u`
User Coordinate System (UCS) shortcuts Set coordinate system by two points	`Shift` + `u`
User Coordinate System (UCS) shortcuts Toggle orientation	`Ctrl` + `t`
User Coordinate System (UCS) shortcuts Reset current	`Ctrl` + `1`
User Coordinate System (UCS) shortcuts Reset all	`Ctrl` + `0` (zero)