Hi @KC ,
You are using the old-version DataTable control, their panel is quiet different.
previous version
current version
For the feature you want, please go to Advance setting -Enable imported data table control selection and value property, and turn it on.

BTW, Hi @mdevaney, my community Message function is not enabled, so I cannot reply back, but you are right, I'm a member of PowerApps support team. As for why there is no badge, this is exactly what I want to ask. LOL.
Sik