With commands I had to be more accurate. The first time I put "runsvr32" instead of "reg...", the second I forgot "dll" at the end. Sorry and thank you for the patience.
It is good to know the result is working, I have no way to test 2 MCUs in parallel.
For EQ/Sends in general, please check the help file. Press "F1" key (on computer keyboard) when configuration window is open. Cakewalk explain everything there. If you have copied my MackieControl.ini, ProChannel EQ should work out of the box. To change parameters order and behavior for other plug-ins, that find can be edited (with notepad or other text editor). There is a combination on MCU (I do not remember it right now) which reload that file without Sonar restart, that makes the process not so painful.
I will all send you a PM in a minute.