PM_ROLLUP_BUTTON

Adds a new button to the window titlebars that you can use to "Roll up your PM windows to just a titlebar". This setting worked in the MERLIN Beta, but seems to be disabled in WARP 4 GA.

Note: WARP 4 only.

SET PM_ROLLUP_BUTTON=<value>

Example:

SET PM_ROLLUP_BUTTON=YES

Parameters

Value; YES or NO.

Source: Team OS/2 WEB pages