Does the crate need to be empty before an upgrade needs to be removed?

Edit: I figured out it does. Suggestion, adding a tooltip would be helpful.

Thanks. I thought I was experiencing a bug. It would be nice if it would remove modules until/unless the remaining state would be illegal otherwise.

i haven`t yet… how can you remove upgrades?

Empty the container and then use the remove upgrade item on it.

LOL... as i got the msg you wrote i just found the item in SF4 :) tnx anyway!