Added in 1.9.0
$submenu($id($1))
Allows you to dynamically create a list of menu items, and can only be called from a menu event.
$id($1) - where $id() is the name of your identifier, and where $1 = 1, and increases by 1 with each call, adding whatever is returned by $id() to the popup menu.
The value that $id() returns must be a one line definition format for a popup menu.
The iteration ends when $id() returns no value.
The begin and end values are sent to check if the item should be enclosed in separators.
Example
menu * { Animal .$submenu($animal($1)) } alias animal { if ($1 == begin) return - if ($1 == 1) return Dog:echo Dog if ($1 == 2) return Cat:echo Cat if ($1 == 3) return Bird:echo Bird if ($1 == end) return - }