Although I can't for the life of me understand why we don't have the ability to setup and save a given loadout.
I bet that's one of those things that's much more complex "under the hood" than it seems - what happens if you fit a complete "kit" and then manually swap certain modules, fly somewhere else and
then swap to a different "kit"?
Does the current configuration become the "kit"? Does the game automatically transfer all the "kit" parts to keep them together? Do "kit" parts override manually installed parts? What happens if you install, say, a bunch of Cargo racks on a T9 and then install an "exploration kit" of core internals which can't support the maximum mass of the cargo racks?
Etc.
Seems like an easy compromise would just be to let us manually create "folders" to store different modules in.
You could create a folder called "Lasers" or "PP Modules" and then move stuff - at any location - into that folder and it'd always be found there, regardless of it's physical location.
If you wanted to be more specific you could create a folder called, say, "T10 Mining kit" and then put all the modules for a T10 mining ship in it and they'd always be found there regardless of whether, physically, you'd left them strewn all over the bubble.
Course, I can't help thinking that the lack of any such system is a deliberate attempt to frustrate players simply with the volume of tat we have to sort through.