This setting takes effect immediately.
Detailed explanation:
With &os2;, each menu item (be it a submenu or a "real" menu item) needs a unique menu ID within the menu. This is a number from 0 to 0xFFFF, identifying the menu item to the system, so that the "owner" of the menu can react when a menu item is pressed.
IBM recommends that every WPS developer use a number higher than WPMENUID_USER (which, on Warp 3 and 4, is 0x6500) for &popmenu; additions.
Early versions of XFolder always used WPMENUID_USER+100
(dec) and above for the variable menu items, but this
has conflicted with other software.
Since &xwp; has no way to find out which offset other
WPS sofware might use, this setting is now
configurable; &xwp; will now use menu items with at least WPMENUID_USER
plus the number you specified here.