Thank you for the comments it really helps.
More details.
We moved the oldest DD to her own room Bec of being highly sexualized & asking her sib to "help". She's also doing a lot of masturbating. So we thought the separation from her sib was important.

My DS who's 6 loves being in the room w/his Sis who's 8. They get along well & I think he was lonely in his room.

One big problem is the way the girls bedroom is set up. We custom made these beds for them.
The ceiling is lofted & one bed is suspended from the ceiling so it's like a bunk bed or nest. So it's 6' off the floor.
The room is small.
The other bed is basically built on top of a 6 drawer bureau system. The bed is 4' off the floor & on rollers.
So the beds make an "L" shape.
Really hard to move.
We had this done when they were little hoping to add space. It worked but they still seem on top of ea other.

I like the idea of splitting the room somehow...its just coming up with something that works.

I just hated that this was the answer the therapist gave...well, move the kids.
I had 6 sibs growing up & none of us had our own room! We keep rearranging things for our oldest & she doesn't seem to be moving along in her issues.

I'd very much like to give my kids their own space. We r packed in here like sardines in the first place & "space boundaries" apparently are an issue.

Maybe that's for another post.
Ugh.