A while back I proposed this idea and I wanted to state it again for all the new developers. I would like to have a directory that is COMMON to all unreal projects. It seems silly to me to have 9 copies of a M_metalmaterial_1 just because I have 9 different projects that use the same material. This would also be nice for things like blueprints, assets, sounds and other things that I seem to use in every project. I think the best way to do this would be to have this either under the ENGINE directories or as a project that is common to all projects.
What do you think?