Ubuntu 12.04 allows to move a window from a workspace to another using the mouse, but once in a while, that feature is very inconvenient because when the active window detaches from the top bar, it slips to the upper border and the top part of the window goes to the bottom workspace, which makes me change workspace in order grab it to the current workspace.
So basically I just need, under certain circumstances, to treat every workspace independently, with locked borders, instead of having a giant workspace divided into four sections.
Is there any way to accomplish this??