Sorry to say, but I have bad news for you... Sonar MackieControl does not support "ACT Dynamic Mapping" (the whole Control Surface communication is called ACT, Dynamic parameter mapping is a part of it). It controls FXes and ProChannel EQ/Comp (only), and it does that using different method (not "ACT Learn"), using .INI file.
And so there is no way to control any synth, nor plug-in in focus.
Unfortunately I will have no time to make such mod at least next 2 month.