what does the "focus:" do?

[Minuzz]

on spar theres like "go here to turn on focus!"...
Yes I'm a beginner in spar
136-94

[Kendrick]

Makes your screen focus to the middle. That's what I believe. Not a sparrer either.

[CHAMPGRAAL]

So you're screen doesn't move while sparring, if it's not focused when you run you're screen will follow you.

[Enfy]

So you're screen doesn't move while sparring, if it's not focused when you run you're screen will follow you.

Yep