Function

Description

F1

Displays Auto-CAD Help

F2

Toggles Text Window

F3

Toggles OSNAP

F4

Toggles TABMODE

F5 or CTRL+E

Toggles ISOPLANE

F6 or CTRL+D

Toggles UCS,  i.e. Coordinate Display on/off

F7 or CTRL+G

Toggles GRIDMODE.

F8 or CTRL+L

Toggles ORTHOMODE.

F9 or CTRL+B

Toggles SNAPMODE.

F10 or CTRL+U

Toggles Polar Tracking.

F11 or CTRL+W

Toggles Object Snap Tracking.

F12

Toggles Dynamic Input.