Ability to link/group/dock plugin windows together, so that they pop up, move, and close together.

A lot of the time you are using a group of plugins to accomplish specific things in a single channel, for instance you might have three plugins that are correcting something in the 10khz range, 2 plugins focusing on transients in the 700hz-1k range, and then some plugins at the end to glue and level out the sound source as whole maybe with a metering plugin at the end.

Why not be able to group these as three different groups that pop up, move, and close together?