Zooming on dual/multi stream not working when PiP off

Steps to reproduce:
1. Open multi-stream event in theodul player. Zooming does not work.
2. Switch to any picture in picture mode. Zooming works as expected
3. Remove picture in picture mode (i.e. off). Zooming stops working, and previously set zoom levels still apply to their respective videos.

Expected Results:
Zoom should be greyed out when not in one of the picture in picture modes.