Welcome Micky.
Its a dark art but you have come to a good place since there are some very knowledgable members her, alas I am not one of them.
A fair number of these knowledgable MIDI guys are in North America where some will only just be having breakfast so do give it time.
Meanwhile it would no doubt help them if you explained a bit more about what you have by way of keyboard and computer inc tablet and what you want to achieve.