Vertical Display in jrList
Jamroom Developers
That $profile_tpl is an example of this method:
Docs: "HowTo: Use a CAPTURE to avoid using another file for a jrCore_list call"
https://www.jamroom.net/the-jamroom-network/documentation/module-developer-guide/1637/howto-use-capture-to-avoid-using-another-file-for-jrcore-list-calls
Check that out. normally template="some-file-in-your-skin.tpl" but you can use capture to skip the need to have a file in the filesystem. Good for when you just need a quick structure which you know will never be re-used.