I can deploy Lightning Pages, aka Flexi Pages with the Metadata API. In order to active a Lightning Page, I can do so in the Page-Builder via
Setup-Home -> Object Manager -> Account -> Lightning Record Pages. But howto do this with the Metadata API? I would assume, that this configuration is also stored in the
CustomObject of the
Account but after downloading it, I couldn't find such an entry and there is also no documentation of such a thing here.
So: How can I active a Lightning Record Page with the API?