I have a big monitor, and would like to use it as if it were several monitors in multimonitor setup. There's a nice fake Xinerama library which would be more than sufficient for what I need, if not one problem: some apps don't support Xinerama. Namely, XFCE has removed Xinerama support quite a while ago, telling that it's old and obsolete. So, I'd like to have a similar thing, but for XRandR instead of Xinerama. Is there any such thing?