Bulit In Shortcuts wont change.

[NREYD]

for some reason my shortcuts wont change, adding custom ones show up and work fine, but bulit in shortcuts wont allow me to delete and add new ones.

[norangeflame]

Unfortunately this project is discontinued by Nulkem, but there is a continuation with bug fixes/updates here: https://www.github.com/Crazypersonalph/betterseqta
You can submit an issue there and we will look into it.