Unable to edit 3D lighting

[olipowell]

I've imported a 3D asset that was edited in Dimension. The model seems to have a light source, which I'm trying to edit, as it casts a darker shadow than I would like, but Layer > Light is greyed out. I've checked and adjusted the lights in Dimension, but it doesn't seem to be coming from here.

Any ideas would be appreciated, thanks!

[Mylenium]

Turn off the shy guy to actually see what is going on in your timeline.

Mylenium