Especially for the samplers, I wish there were some kind of velcro or thumbtack so you could latch all those flippy-windows onto the device's body, or maybe onto the side of the live-bar.
With the sampler, then you could fix the file-browser and maybe the pool in place onto the sampler so you could slide a patch into place without things gettin all squirrelly on you. Also the preset window and gain.
For synths, you could stick the preset windows onto them, and you could stick two synths or instances together.
I'd like it if you could have a docking-box that holds open preset lists, independent of having the synth-bodies showing.