Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
Atlassian recently announced Folders in Confluence

Is it possible to add support for this in mark ?

For example:

<!-- Space: <space key> -->
<!-- Parent: <parent 1> -->
<!-- Folder: <folder 1> -->
<!-- Title: <title> -->
<!-- Attachment: <local path> -->
<!-- Label: <label 1> -->
<!-- Label: <label 2> -->

<page contents>

Describe alternatives you've considered
Have not looked into an alternative to this.

Additional context
Currently our Wikis all fall under a myriad of parent pages. If a parent page doesn't exist, mark will create it (awesome). Since the release of Folders from Atlassian, this seems like a good way to organize our wikis even better.