Hi, y'all. In an attempt to make it so my -2 Dex mod fighter can use half-plate for her barbarian levels, I'm trying to get a set of half-plate armor to not use the Dex modifier at all. My settings on the half-plate are currently:

Dex Bonus - None

Stealth Check - None

Bonus - Armored Armor Class - Charisma

Set - AC Max Dex Armored Modifier - 0

I'm wondering how to actually set it to not use the Dexterity modifier at all and only use her Charisma modifier to be her Armor modifier. The Charisma would function the same way as the Dexterity mod normally would normally (max 2 unless she took the Medium Armor Master feat), but I'm struggling to get it to function the way I want it. Any help would be greatly appreciated. Thanks!

Bonus - Armored Armor Class - Charisma

Set - AC Max Dex Armored Modifier - 0

That’s how you do it. Did you remember to re-save the whole item? Try taking it off the character and adding it back.

Thanks for your help! Although, I was attempting to just make it so that her Dexterity modifier isn't used at all. Setting "AC Max Dex Armored Modifier" to 0 still uses her -2 to Dex, which makes her AC lower than would be wanted in this instance. Setting the "Dex Bonus," the option next to the type of armor, to "None" in this instance doesn't negate the Dex bonus at all. Is there any way to properly populate that as ignoring the Dexterity modifier in general?

Ahh. A negative Dex mod will always be applied to AC, there’s no way to get around that. You can add a fixed value to offset that negative modifier though, like this:

Modifier: Bonus->Subtype: Armored AC->Ability: Cha->Fixed Value: 2

That would both offset the negative Mod and apply Cha at the same time.

You know what, that makes a load of sense. Thank you so much for your help!