Thanks Jean Marie , that was easy as 1-2-3, right? I totally learned a new trick from you (automating weird inputs with time), this will sure be useful <3 Any ideas though on how co create ripples for non-round shapes? Or a least a square shape. Somethings like this:

Bodysoulspirit, I'm back with an update. This List nodes you've introduced are just the thing I was lacking. Awesome! Now I just need to figure a way to - use either images\layers\3d objects to represent each pad so that I have the easiest approach to changing their properties. - use subcomposition to wrap around the MIDI-to-pad block and have a clean interface of published ports to interact with it - have arbitrary effects\events connected to each pad

So I'll go study some examples and play some more with it . Will report back, most probably after the vacation in 2-3 weeks. Thanks again for pointing me the direction!