Controller draw into multiple tracks

You can't draw multiple envelopes, you need to copy+paste. However, you can edit/move multiple envelopes simultaneously (even if they're different types) by ctrl-clicking their respective automation lanes and using the smart tool. For example, move the envelopes left/right, up/down, limit to upper or lower, etc. Also if you select only a particular range, then the operations will affect only that range. Play around with this for a bit, and you'll see what I mean.

You would need to do a feature request. It sounds like all you would really need is to be able to use the Draw tool as well as the Smart Tool with the editing procedures described above.