Wow! Thank you very much for your comment and compliments! :)
The button puzzles have a simple system: Some fields toggle 1 or 2 (I think it's almost always 2) barriers. And then you just need to move them to the target fields without colliding.
That said... When I am playing puzzles like this (or most of the puzzles), I often end up pushing buttons almost randomly till it's solved as well. ^^
As usual there are a LOT things that could use work. But also as usual: I underestimated the work and ended up barely finishing this.