Reply to Ableton Mapping help needed!

Hey guys!

So, I'm neeeew to ableton, but decided to start using it for production mainly.
I've been doing some searches around on different community s, but couldn't find answers to what I'm looking for:

Ok, so I've got a nanoKontrol, and I want it to control volumefaders, solo and mute, which obviously isn't a problem, since this can be achieved just by using abletons basic midimapping options.

My problem is, that I also want the nanoKontrol to control parameters on whichever device or instrument I have selected. I'm aware that this can be achieved using the User Remote Scripts, but to my knowledge this method can only help me control 8 parameters, and I don't know how to control WHICH parameters is to me controlled.
SO, what I would really like to do, is to be able to control 16 or even more macro controls with the NanoKontrol, AND I would like to be able to choose which parameters to control - while still ONLY affecting the device/instrument selected/highlighted.

Oh, and also, is it possible to map a shift button in ableton? and if yes, how?

I'm aware that some of my problems could be solved by using Bomes or similar products, (even though I don't have any experience with these programs), but I don't wanna use further money on software.

Hope you can help me!