how to "reset to default" value fileds of character sheets?

Hello - is there a way how to let character sheet (roll20 OG) "recalculate" its fields? eg - If I adjust/or edit AC by accident it will keep that info (but still is correctly counting armor/shield) but with "incorrect" base - how do I get "correct" or "calculated" base (unless I do it by myself ofc) - just wanted to know if theres such feature. Thanks

Anything that activates a sheetworker will recalculate & overwrite the relevant field. So for AC, if you edit it manually and change it, then alter your dexterity_mod by 1, it will recalculate AC to the correct amount. Many fields don't have a sheetworker to calculate them - there is no way to "reset" those, as the character sheets do not track changes. So HP for example - Roll20 has no idea what your rolled as you leveled up, so if you change your HP to something silly, there is no way to "recalculate" it because there's no data to calculate from. The only way to reset a whole sheet is to maintain a backup, either a duplicate (renamed) in the game, or in the Character Vault.