Hi @Jose Quintero ,
Thanks for reaching out and pointing this out.
I have checked internally with the product team and got to know that are making some changes in the backend due to which app role is currently not visible.
Team is working on it and will make that option available soon in the blade.
As a workaround, you can make changes in the manifest.
Hope this will help.
Thanks,
Shweta
Please remember to "Accept Answer" if answer helped you.