Custom blocks

Hi,

I`ve started a similar project: https://github.com/furesoft/Avalonia.WYSWYG/tree/main
then I found your Projekt and it would be more convenient if I convert my project to use your editor. So is it possible to migrate my widgets easily to flowdocument blocks?

how could I add those blocks at runtime? In my editor I use a / syntax. Maybe it`s also an option for your editor?