Just went back on and solved that one, though you can still be tricky and jump onto it, can't easily stop it, final edit before I get bored xD

Well it's a better, at least this time i had to press one button. The one to turn off the lasers, the other i dind't really need, because u can jump where the companion cube spawns and then jump on the faithplate without needing to use the button for the elevator.

Yeah forgot to do the other wall, unportalable, just finished another update to it. Though I fear I've just made it simpler

I still only need the beam to finish it and it only takes like 5 portal placements.

Ooh I forgot to do the back wall unportalable, I only ended up doing the front wall, I'll quickly go and do that, thanks for the advice :)

It's a little easy, I only needed the cube on the button and I was all set just using the portals. Maybe try to make areas unaccessible when you want them only reached via faith plates.

Edited it a little bit may add some challenge now :)

I don't know what the buttons of faith plates or cubes are for. I just used the beam and finsihed it without the need for the other stuff.