1) You must patch it to runelite or hdos using the client patcher tool, it'll appear when you first launch osbot. It'll ask you the location of runelite you must locate the file and then click run, it'll do the trick If you don't wanna patch it then mirror is always an option.
2) You can unpatch it so it won't open osbot anymore, using the same method as above but in reverse
3) HDOS is also a great option, none is better, they are there for convenience imo. Some people want to isolate runelite and hdos just to make life easier.
4) Nope
5) If account is member, first ban will be a temporary 2 day warning ban, then if you get caught again, it'll be a perm. The temp expires in 1 year and you can start over with another 2 day ban. I recommend changing the activity, most people still continue botting past a 2 day ban.
If the account is f2p, it's a straight perm ban.
Hope this helps, gl fellow botter