Having problem loading a level when world composition is on

hi im making a huge open world game. i have world composition on. but my problem is i want to be able to goto an indoor level & unload the world composition levels.
i blue print coded this to test but it didnt work.

n key / load streaming level / unload persistent level (wc).
yeah nothing worked.

how would you load a level outside of your world composition levels and goto that??
also how would you go back to world composition levels when leaving?