I find it very usefull to add all parts of a thing im creating into one factory profile with all of them set up, just selecting and deselecting which ones I want to print while saving each gcode separately, this way keeping all the common stl files together in one factory file and not making a big mess with all the parts with multiple folders and such.
Id like the button with with the center and alight feature to ignore when models are not selected/ are disabled.
Maybe it would also be a neat feature to introduce somewhat of a page system on the factory files:
You could have more workspaces in a singel factory file with different parts of the print with different processes. just like tabs in web browsers, but all still saved in a single factory file. Then you could truly just have one file called 3d printing with set up factory files which you just open and print or export multiple gcodes depending on those pages/ tabs. I still like the feature of having more models in one worksapce and disabling them, which could be used for different versions and such too. So in a way not to replace but add a page system thats still under the same factory file.