Is it possible to override built-in XP embed macro?

Title mostly says it all. I’m importing a bunch of wordpress content, where we have embedded content in the format


It’d be nice to continue using the same format, but having more logic on the embed body. The build in thingy just complains about the missing iframe…

If it isn’t possible, I guess I need to rewrite the content during the import, converting the [embed]s to [video] or smth like that.

If you create a macro in an app it should take precedence over the built-in macros with the same name.

So if you create a macro with name “embed” and your own logic, it will be used instead of the built-in one, as long as you set the app on your site config.