This would probably require my other feature request for stats with text values, linked below.
I would like to be able to have dropdowns on the character sheet. These dropdowns would have a default value selected as well as a pre-filled list of selectable values.
The easiest use case (also mentioned in the feature request below) is to be able to select which ability score each skill on a character sheet is tied to. If I were using this for a 5e character sheet, each skill would have a proficiency checkbox, the name of the skill, a dropdown with the associated ability, and the total bonus. The total bonus would be a stat that was calculated based on the proficiency and selected ability.
A similar use case is with weapons or other attacks. Have stats for the name, the damage, the type of damage (maybe as a dropdown), and the ability associated with the damage (definitely as a dropdown).
The spell sheet can be pre-filled with number of slots (determined by your class level and spellcasting class, which is a dropdown) or attack bonus (determined by proficiency modifier and the selected spellcasting ability).
And so on.