You can split your kitchen sink (a very common thing in Arizona, actually) by using a send/return, as I do in this preset:
5E3 Tplt1A.syx (right-click and save as if you get a screen full of gibberish)
This lets you have more room to add stuff, including a block for volume control before your delays and reverbs. In this particular preset, the volume boost in the VolPan is done with help from Scene Controller #1, so that the scenes can tweak the knob for you as appropriate. Simply change this to any controller you wish to use if you wish to manually control boost....