In the payloads section I have

Links and sources page

Where you can add a Bitcoin address or any other crypto, your website, your email anything really. And a source links which will be other posts you can link to someone else's genesis profile or a particular post and this will all display in the UI and you can setup unique links for each tx, so you can have each post have a different Bitcoin address and track donations to projects for example if your a free lance coder you might make a post about doing a project and need 1k to fund it all through donations. I decided on this route so I can support all types of future payment systems the choice is upto the user what links they put in each tx. I have no native coin but there will be a dedicated Bitcoin button and an "other" button for a list of other crypto to try and promote Bitcoin as I still believe it's the best crypto and always will be. Hope that answers your question.

Peace

Nate