Reprinted "Cliff's" notes from various manuals.

Keyboard

You can have keys repeat if they are held down. This feature is disabled by default, but you can enable it by setting si:*kbd-auto-repeat-enabled-p* to t

(setf si:*kbd-auto-repeat-enabled-p* t)

The speed of repetition is controlled by the variable si:*kbd-repetition-interval*.

You can exempt certain keys from auto-repetition using the function si:set-autorepeat-p. For example, to make SQUARE one of the keys that do not auto-repeat, you would type:

(si:set-auto-repeat-p #\Square nil)

You can customize key bindings; see the section "Setting Key Bindings in Init Files".

For the MacIvory, see the section "Using the Genera Application on a MacIvory".

Console

XL's User's Guide - Using Local Commands on the XL

tv:screen-brightness
sys:console-volume