Combining 2 lists with split surfaces (each different ones) so the geometry follows the area of the wall

I have made a surface that i let continue so i filled the wall. This ment that i had parts of surfaces sticking out. I’ve managed to cut them by plane seperatly so that i get 2 lists where i’ve split off different parts i don’t need. Now am stuck and i have no idea how i can combine them correctly since they both don’t have the “cut” version of those surfaces of the other.
here are some screenshots for both instances. I’ve also tried to split the output from one of the lists but that gives problems where i can’t really get the right surfaces back out.
anyone who can help?

Are you trying to intersect the wall geometry with the surface?
Can you share the full graph with the drop down information pinned?

It would be helpful if you more clearly explained what you were doing and what you want your final outcome to be. It sounds like you just need to build the geometry in a way that doesn’t require splitting afterwards.

Alternatively, you could either use a projected surface to get the singular intersection of geometries you want to keep or just trim the surfaces in series rather than at the same time. There are also custom nodes that handle recursive trimming that could effectively do the same thing. (Springs package has SplitRecursively.)