F1 displays help F2 displays text window (Ctrl+F2 since 2014) F3 switches object snaps F4 toggles table mode F5 toggles isometric planes F6 toggles DUCS (switches coordinate display, till A2006) F7 toggles grid display F8 toggles ortho mode F9 toggles snap F10 toggles polar tracing F11 toggles object tracing F12 …

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