Provide precreated page via plugin

I’m currently playing around with the plugins for Kirby.
Can I somehow provide a precreated content page via a plugin?
Or is there a way to fake it at least.

For example, if I wanted to do a formfield with a confirmation mail feature and wanted to have the confirm page be a precreated one with example texts and all served with the installation.

If I can’t do it by serving a precreated page:
Can I do something with the routes and, say, a template to fake it?
So that the page does not exist in the content folder but when going to /confirm that the user would receive a page like normal.

You can use both a virtual page that is registered via a route or one that is registered with the page registration:

That’s exactly what I was looking for.