I found this "short-cut" method v. useful to get me going quickly ahead in any project:-
I was able to put all of my frequently used "footprints" into one "local" Library (including those that I created + those that I grabbed from the default Library). I could also easily, modify the existing footprints from the default Library, and then "save" them in my local library, in simple steps:-
1) Open any of your old, or new project launcher & it's schematic. 2) Then go to Pcbnew 3) from there go to "Footprint Editor" 3) go to "Load Footprint from Library" (If you want, you can also modify that footprint) 4) then go to "Select Active Library" 5) scroll and select any one "name" of your local library (created from before,- as if you had created and added it, the name of your local library will now show up in the default library list) 6) so now click on your local library name (as now the Title Bar will also show your library "name" as an active library. 7) now simply click "save footprint in active library" 8) Do this for each footprint that you want to put in this one local library.
Now you have quick access to all your mostly used footprints in this particular project.
& if you start another new project, then now, you just have to "ADD" that above local library to your new project folder. These simple steps of adding that library to any project is given in the other forum that I have mentioned above.
(however, I wonder if my above method is really "short-cut"? The old time veterans here, they mention that we can make our local libraries almost like "global". I believe that is true. But till I practice their suggestions, ..this above method is doing the job very well for me, at lest till now)