I have a few small n00b questions that would really help me along. 

1) How do I change the "ball scale" property in chimeraX using a command for the sphere representation?

2) When I do "select protein" (which is represented as a cartoon) it highlights it but clicking on any of the buttons to change the representation does nothing. I need to click first on the show atoms and then I can click on those but many of the H are not connected (for LYS I have two white dots floating above the carbon with no bond to them, but a bond to other C's and it is only for one CH3 group, the other is fine). This is true in all three representations. How do I fix this?

3) Can I increase the resolution in VR? 

4) After clocking on the label tool with a VIVE controller and using it, how to I change it back to the original mode so I can scale the model (using both triggers)?