& @trigger
Syntax: @trigger[/<switch>] <object>/<attr> [=<param>[, <param>]...]
Invokes an action list stored in an attribute on an object. The
triggering object becomes the enactor and the positional
parameters %0 through %9 are set to the supplied parameters.
The @trigger command supports the following switch:
quiet - Inhibit 'Triggered.' acknowledgement messages.
See also: LOOPING