BMS functionality

I didn't see a section on the BMS, so I am asking here in the general section. 

I have 3 questions on the BMS, please.

1. What is the purpose of the "Charge Cycles" setting?

2. In “Custom chemistry settings”, what is the purpose of “Cell nominal voltage”?

3. In the "Run" tab, under what conditions should the "Charge OC" LED light up? I can see the "Tripped" LEDs light up, but not the "OC" LEDs.