Sorry to pester with all the questions lately, I finally had time to sit down and do some automation work I've been putting off.

Anyway: I'm working on an ancestry that has an innate 10 foot swim speed, and a feat to increase that to 25 feet.

Both work individually using the MOVEMENT automation; however, after applying the feat the character's movement line looks like this: "Swim 10 feet, Swim 25 feet". I understand why that's happening, and it's not hard to just instruct the player to remove the old entry, but is there any way to clean that up automatically?