Fyrelite

How do I replace the nether and end? Currently my worlds list is as follows: world world_nether world_the_end ul_world ul_world_nether ul_world_the_end the uploaded worlds are linked, but the nether is new, how do I delete worlds? edit: i've done some research, I've downloaded a backed up version of my nether and end, do I /del the ul_world_nether and ul_world_the_end files and reupload the nether and end separately? Also is it possible to delete the world, world_nether and world_the_end files?

How do I replace the nether and end? Currently my worlds list is as follows: world world_nether world_the_end ul_world ul_world_nether ul_world_the_end the uploaded worlds are linked, but the nether is new, how do I delete worlds?

I have uploaded my world with the /ul command, set it to the default world and the nether and end is linked up to the right seed, however they are new and regenerated, with no marks. How can I fix this (without uploading the nether and end separately if possible) Also, is there a way to delete the default world, world_nether and world_the_end saves whilst keeping the ul_world ones?