I am wanting to extend the pricing model as per https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-extending-best-price-calculations
The objects relating to the functionality are in the database (as per below)...

And I can search for the Price Calculation Methods page...

However, Extended Price is not showing in the Feature Management list....

And if I try and run the Price Calculation Methods page I get...

From the article linked to above this seems to have been released in 2020 Release Wave 1. This is an OnPrem version v17.0 (which I understand is BC 2020 Release Wave 2), but Feature Management is definitely available OnPrem.

Am I missing something? Do I need to do something in order to get the record included in the Feature Management table?
Regards
Craig