Mixer drag and drop

So why exactly can you not drag and drop sends like everything else in the mixer? The copy and paste thing is nice, but…

Also lets say you copy a plugin from one channel to another, then go back to the first plugin, make some changes and then want to copy and replace the second copy to make them both identical. This used to work (I think in C5) but was changed in later versions including C6.5 and C7. What happens now when you try and copy and replace is the plugin MOVES to the slot and the plugin that was there MOVES down 1 slot.