Dragonborn breath recharge

Hi Folks,
This may be a dumb question but figured I'd ask. I'm thinking of making the Dragonborn's breath weapon operate with a recharge as opposed to 1/short or long rest. I think it would make it more thematic and give a boost to a relatively lack luster race. Is there anyway to automate that like it's done for a monster? I know the NPC stat blocks are much different with how they function with the CT. Any direction would be greatly appreciated. Thanks!!

Add an effect line that the player can add when the breath weapon is used. The below example would recharge on a 4+ on a d6.

RCHG: 4 Breath; [SELF]

Thanks Cyrian!

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Originally Posted by Cyrian

Add an effect line that the player can add when the breath weapon is used. The below example would recharge on a 4+ on a d6.

RCHG: 4 Breath; [SELF]

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What if we wanted it based off of a different die roll? This is on a d6 but say we wanted to do it on a 11 based on a d12?

Or is it that all recharge can only be based on a d6?

Recharge is all based on a d6.