I've been using v6's 'embed UI in TCP' with Megababy, and have a custom action to toggle the zoom (
gif).
This leaves quite a lot of space to the right side of Megababy, maybe enough for a few instances of RS5K to sit embedded in the TCP, displaying the wavform with ADSR. If there was no wavform loaded it would be great to be able to drag and drop from the media explorer onto the RS5K instances within the TCP.
The benefit of this would be an improved/faster workflow for people who program with RS5K and megababy. You could save this as a track template and be able to start programming drums without having to open the individual windows from the FX browser.
Currently it's not possible because RS5K doesn't have the embed in TCP functionality.
Below is a quick mock up of how it might look...