Make Buttons On Floating Toolbars Only Apply To Desktop

I have setup a floating toolbar on DOpus and I was wondering if it was possible to make certain functions on it to only apply to files that I have highlighted on the Desktop, as of now it only applies to the active side of the dual display. The ones highlighted in red are the ones I want to change files on the desktop only.

I don't think there's a way to do that, unless you work out how to use the shell's scripting APIs to get a list of selected files on the desktop. That might be possible, but isn't something I've ever looked into myself.