When laying out multiple objects the program typically puts tons of space in between the parts. This means I have to go back and manually adjust every party so that I don't waste tons of time and materials on building huge rafts when only small rafts are needed. Also It means I can't print nearly as many pieces at the same time since it wont arrange them all on the build plate.
If you want to be able to import a model, arrange it, import a model, arrange that, etc without your models being automatically centered and arranged you can turn it off in the preferences > models > automatically center and arrange models
Thanks for the update but this is more a feature of the software. I do like the auto arrange feature it just needs to be more flexible.
For example 9 identical round parts are arranged with lots of space in between like below. I have to go to each part and manually move them closer together so that I can fit as many as possible on the print bed.