You would create a racial trait/class feature. Then, attached to that trait/feature you would create an Action with a single Limited Use. Then you would attach those spells to the same trait/feature as “At Will” spells by not giving them any number of uses at all. The single limited use for the action is what tracks the use for those spells, but the spells will appear as “At Will” on the character sheet, so it can be confusing for some new players.
How do I add same spells in the same 1 charge ability?
such as Firbolg Magic being able to cast either Disguise Self OR not AND Detect Magic once per short rest
You would create a racial trait/class feature. Then, attached to that trait/feature you would create an Action with a single Limited Use. Then you would attach those spells to the same trait/feature as “At Will” spells by not giving them any number of uses at all. The single limited use for the action is what tracks the use for those spells, but the spells will appear as “At Will” on the character sheet, so it can be confusing for some new players.
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aight that's helpful thanks