Updating

[Krhoppy]

I am a little new to using NMM, but it seems that in order to update a mod, I have to uninstall and delete the older version? Am I doing that right? I am afraid that if I uninstall something that gives me alternate building materials for Fallout 4 (for example) I am going to lose the buildings I built with that mod.

[ZsoSahal]

Generally speaking, before you do anything drastic in the middle of a playthrough, you want to make a clean save (look up how to do it).

Then uninstall the old mod, install the new mod, make sure your load order is correct, and then fire it up to see if it worked. If not, you can always roll back to the old version for the rest of this playthrough.