Modifiers

Shift

SFT

The shift key.

Ctrl

CTL

The control key, or its equivalent.

Meta

This depends on the window-system, on X11 it is the "Mod1" modifier, on the Amiga the "Alt" key. When the meta-sends-esc variable is non-nil the Meta modifier is treated specially,

Variable: meta-sends-esc

When non-nil, any Meta-modified key presses are expanded into a sequence of two key presses, ESC and the pressed key minus its Meta modifier. For example typing Meta-f would expand to ESC f. This feature is provided for compatibility with GNU Emacs. What this really means is that when the option is enabled (it is by default) you can either type the key sequence ESC X or the sequence Meta-X (where Meta is your keyboard's meta key) to invoke a command described as Meta-X.

LMB

The left mouse button.

MMB

The middle mouse button.

RMB

The right mouse button.

As well as these, there are also some others, Mod1 to Mod5 represent the X11 modifiers of the same name. Button1 to Button5 also correspond to their X11 counterparts (Button1 to Button3 are LMB to RMB). For Amiga users, Amiga corresponds to the Amiga key (this is the same as Mod2).

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