Chris,
Are you talking about adding additional tabs other then Solidworks Resources, Design Library,
File Explorer, View Pallette, Appearances/Scenes and Custom Properties? I don't think that can be done.
I know you can add command tabs to the command manager, but I don't think that is what you are
talking about.
If you are asking what I think you are asking, why don't you just add the folders in windows explorer and then
tree to them in File Explorer. This just mirrors windows explorer.
Also I know in the Design Library tab you can add new map folders inside of that, but that is to find blocks
and symbols.
I don't know if this helped or not.
I asked SolidWorks for this years ago, after seeing that it could be done with another program.
click on file open and then navigate to a folder then drag that folder to the side bar and it would always be there so when you wanted to open or save a document it would be one click navigation to that location. Most programs have gotten most difficult to get to where you want to save files. They all seemed set up to save to the cloud which to me is like the dark web.
I noticed this has not been answered but does anyone know how to do this? I would like to add folders that can be easily accessed each time versuses digging through the desktop to get there.