I'am fairly new to the modular and how it works, and I was just wondering if it is possible to set one note polyphony per split ? Say I have 3 note poly and a 3 way split can you set the polyphony per split? if so could someone give me a quick example of this?

Put each keyboardrange in a different slot (this way you can use up to four split keyboardranges). Now use the KeybSplit module and connect every output of the Keyboard module to the KeybSplit module. Connect all other modules from the outputs of the KeybSplit module. To have this work properly you also have to open the Pitch inputs of the oscillators fully, the filters modulation input halfway and all keyboardtracking settings on all oscillators and filters to zero. For each slot (= keyboardrange) you can set the number of voices that slot is allowed to play. Additionally you could set a different midichannel for each slot in the synth settings menu

The attached patch is an example of a sound that can only be played in the 4th octave.

And in accordance with my "oh no, a sunday hangover" mood a mealy melody...