Settings - Icon Positioning

From the Settings menu, choose Icon Positioning and Opus will enter a mode
where you may create special icon positioning areas by clicking and
dragging on the main window. These areas are represented by windows which
can be resized, re-positioned and closed as normal. Each window has a RMB
sticky popup menu to configure which types of icons will appear in that
area. You can also select one of five priorities for the area, which
determines in what order the positioning areas will be used.

These areas are saved in the Environment file. Defined areas may
optionally include Appicons, Disks, iconified Listers and  Buttons, Groups
and any Left-outs icons including items in the Desktop Folder.