DM dropping as 3rd CB and opinion on 4-2-1-2-1 (Wolves)

Hi

With Wolves, I'm playing 5-2-3, but thinking of switching the 4-3-3 (sort of) next season.
I aim having Dendoncker and Neves on the same line, but I'd like Dendoncker to do what we often see these days: dropping inbetween the 2 CBs so the team becomes a 3 at the back.
I looked through all the roles, none mention that.

Is there a way to do that?

And also, what's your opnion on the first draft of the tactic:

System
Team instructions here, here and here

I'm preparing that tactic because I'm not sure my current would work a second season. And also, Neves has been really bad and I don't like that. And it'd be cool if Jonny was good, because the current role doesn't suit him, but he has great attributes and I think a 4atb would work better. But Jimenez has been immense and I hope to not lose that.
I haven't completely looked into it yet, I mostly took my current tactic (from FMScout) and modified position and a couple of stuff.

Yeah you can. You just need to drop Dedondecker into a central defensive midfield position and assign him to the Half Back role. It won’t work with him being placed on a left or right side pivot of a two though.