what is make local(when I hit L key)
“Make Local” (LKEY) is used to create a copy of a linked object in the local
file. In other words, if you have linked (instead of appended) a Material,
ObData, etc. from a library .blend file (SHIFT-F1), and you want to make
changes that do not effect the original in the library file, then make the data
I hope this helps.
it also works when objects are linked between scenes (Shift-L)