I recommend checking over the source code of F3X. If you do not understand it at the moment, I would try to read more into Lua, and or getting someone that is at that level to help you.
I am sorry I could not help more, but that is what I recommend doing you should also go to ROBLOX API Refrences as it will include a lot of the API.
Hey, do you think it would be possible to make a saving system, because I’ve realized that f3x imports parts directly into workspace server sided. I could make a few adjustments in the F3X tools spawn place and could make folders for each player. Then I should just make a saving system and it should be fine!
If you are saying that you would like to save the build’s data, then I highly recommend you do not use DataStore as it will no work on Studio, you could create an API that connects to Firebase for an example and store all the build data there.