Flipping and Rotation

From Shortcuts Listing

List of Shortcuts

Keyboard Input	Description
Ctrl + L	Flip selected tiles horizontally
Ctrl + Shift + L	Flip selected tiles vertically
Ctrl + . Period	Rotate selected tiles by 90° (Clockwise)
Ctrl + , Comma	Rotate selected tiles by 90° (Counter-clockwise)
Ctrl + / or Ctrl + ~	Rotate selected tile(s) by 180°
F5	Create pentagon shape
Shift + F5	Create upside-down pentagon shape
F7	Create heptagon shape
Shift + F7	Create upside-down heptagon shape

Click on each Shortcut Description for more information and video examples