Can you choose which skill you get when a warmaster reaches level 105?

1. If a skill shows up you don't like, can you close the app and relaunch to roll for a different skill, the way it works with other monsters?
2. Can you spend 20 gems at level 105 to choose a different tier 4 skill?
3. If the answer is no to the above 2 questions, then how do you know which of the 4 skills is forced upon you when you reach level 105 or is it random luck?

I'm considering trying to rank Elvira and would appreciate help from players that are better than me. Thank you.

@monsterbath you can't choose and you can't change Group 4 skills. They appear in the order they are listed on Monster-wiki

So I won't get the 4th skill until she reaches 130. Ouch. I could have sworn that months ago a team mate was talking about using gems at level 105 to change skills on a Ruby. Wonder if they changed that or if it only works for Nemesis and not Warmasters. Thank you for the response.

@monsterbath 120 actually, but yeah. Plus this is now the same for all monsters with skill group 4 skills.