I'm playing the game and I have to put that toxin in 4 areas so that I can get to level 4. Went to those 4 areas and put the researched chemical in. I never got a message saying what to do next, plus my notes say that I haven't done it yet. The next step after is to clear the elevator shaft. How do I do that?

Have you been summoning any objects via the console?

Only some cyber modubles to upgrade stuff. Would that affect it?

Yuuuuup.

Is there a way to undo it?

Probably not without getting DromEd involved.

It doesn't matter anymore. I restarted without cheats.