Reply to Using Kontrol X1 With FL Studio

I recently got back into producing after being away from it for almost 4 years now, back then i used a nice little program called Jeskola Buzz and my laptop. I bought myself FL Studio with some nice NI VSTs (FM8 & Massive 'yeah yeah, i know...') to get me started again. Now I am really a newbie when it comes to all this midi stuff and so on. I have my Kontrol X1 and the S4 and i know they both have Midi modes. What exactly is the point of midi with FL Studio, can those be used with it?

I already use my full size keyboard with FL Studio, got that up and running easily, but i wanted to see if maybe i can use the X1 at least to control some of the knobs and other goodies within FL Studio or the VSTs I have. Is there a way to do that? I know it recognizes the X1 because when i press the buttons on the bottom of the x1, it acts like a keyboard and i get sound. But what if i want them for different functions and again, would be nice to use the knobs somehow.

If someone could guide me on if it would be useful to use my X1 with it, that would be awesome, even better if i could somehow use my S4 as well. thanks!