Yes, I know you can. That's not the point.
The release notes for the beta explicitly states "added profile for TPLA" - and yet there is no profile for TPLA. Sort of the thing one points out about beta tests.
The added profile was the entire reason I slapped the beta firmware onto the printer, so that I don't *need* to adjust the PLA profile for it. I swap between CPE+, Nylon and TPLA on a daily basis when I'm running the printer, and often more than once a day. I don't want to have to adjust the profile, so I opted for the beta that explicitly listed it, but it's not there.
That's the entire point of a beta, to test things and search out bugs. Like an omitted feature listed in the changelog.