Open Edirol, set the port to a port like 3 or whatever.
Create a new MIDI OUT channel.
Set the MIDI OUT port to the same as Edirol.
Select the channel on the MIDI OUT. Channel 1 will control channel 1 on Edirol.
Then use the bank and sound settings to pick which sounds in Edirol you want to use.
Here is an example......
The number next to the P on Edirol is the bank #. Second # is the channel #.
All this is in the Edirol manual. It tells you what CC# control what stuff on Edirol.
When you know this, you can link your controllers knobs to the knobs on the MIDI OUT channel. Then link the knobs on the MIDI OUT to the CC# you want it to control.
Now your settings in Edirol will be there when you save and reload. And if you have a controller, you can control what patch you use, volume, pan and whatever else you want with your controller and not the mouse.
Pimp shit.