Loadout Composer is an addition to the ACE arsenal, that allows selective loading of saved loadouts. For example, you might want to load only the contents of a loadout's backpack too your current loadout, without changing anything to the rest.
- Open the ACE Arsenal.
- In the bottom right corner click the "Loadout Composer" button.
Switching to the Loadout Composer UI will disable some functionnalities of the original ACE loader. To reset the behaviour to normal, escape to the arsnal's main screen view and open the loadouts menu again.