is it possible to say “ctrl c, ctrl v” a mesh from one file to another?
Check out Appending in the file menu…
Hang on - I’ll even be nice and locate the docs for you …
Man - There’s not much. Greybeard’s done an excellent video tutorial on this - search and you’ll find it!
In the meantime, try this for starters.
Shift-F1 for Append.
Click on the Objects tree (unless you know what you are doing, you will always want either the Objects or the Materials item).
Use the right mouse button to select one or more items.
Click on Load Library.
Hope this helps.