\colab{} \?:

Format: \stmt{?}
        \stmt{? $<$cmd$>$}

Options: $<$cmd$>$

Effect: This command provides a help facility. If you provide no
        arguments a listing of all current commands with a short 
        description (one line) is presented. The commands are grouped
        together according to the \COLAB{}-(Sub)System they belong to.
        These are the colab-system-commands, the current 
        sub-system-commands and the colab-support-commands.
	If you specifiy a command $<$cmd$>$, \COLAB{} will provide short
	help for the specified command. If nothing could be found,
	\COLAB{} will give a message.

see also: \help
