Allow/Disallow Ammo Toggles

Preparing properly necessitates carrying more ammo types than the player typically needs for a given encounter.

Problem: Once players are using more ammo types, scrolling through ammo selection becomes cumbersome and unreliable in combat. This is exacerbated by newly looted ammo being added to the list, and a lack of reliable sorting in the field makes it frustrating to resolve (usually by dumping ammo into a box and looting it in the desired order).

Proposal: Perhaps players could populate the collection of selectable ammo by flagging them as standby - each added to the end of the list. Equipped ammo could be automatically flagged as standby.