I've never made a level so I'm not the best one to give advice but have you looked at An Underwater Adventure in the editor? It sounds like you're trying to replicate the first puzzle in that level which I assume was done with shifts, rather than using COs. You basically have two copies of the area (one lit and one in darkness) with a triggered shift at the light switch that teleports the player between the two.
Edit: Making Juni invisible aswell as everything else would make the level all but impossible. The player needs some sort of feedback on what's happening to make a reasonable attempt. Having to memorise how long to hold keys down aswell as memorise the room layout would be absolutely infuriating.
I've never made a level so I'm not the best one to give advice but have you looked at An Underwater Adventure in the editor? It sounds like you're trying to replicate the first puzzle in that level which I assume was done with shifts, rather than using COs. You basically have two copies of the area (one lit and one in darkness) with a triggered shift at the light switch that teleports the player between the two.
Edit: Making Juni invisible aswell as everything else would make the level all but impossible. The player needs some sort of feedback on what's happening to make a reasonable attempt. Having to memorise how long to hold keys down aswell as memorise the room layout would be absolutely infuriating.
That was why I was planing to make it a level with different difficulties, but none below hard.
Also because I have seen no level like this before.