[linux-audio-user] sticky windows [may be OT]

Hi, dealing with linux GUI audio applications I have found that the following feature would be usefull: I want to stick or glue some windows of *different* applications together so that they be organized in "solid body" i.e. so that I could minimize/restore, move them together. (you can find an example of similar behavior in how xmms organizes its subwindows) I know that some window managers offer "border gravity" and some others offer virtual desktops, but sometimes it's just not enough. As fas as I can tell the linux audio goes the unix way in the sence that there are many small interacting programs each doing its own thing. So one needs to have *many* small GUI apps open at the same time. And the feature Im talking about would be realy usefull. So my question is: Which window manager support such "sticky" feature? horsh