So when I understand you correctly, you would like the software-notes template from Shideravan to also display the corresponding ProjectMESS page?! Well, the notes editor/viewer is no fully fledged browser, but it could perhaps be done as the internal browser now allows asynchronous loading of URLs (and not just "static" HTML). No guarantees.

However, that's actually what the ProjectMESS tab is for smile.

A mind is like a parachute. It doesn't work unless it's open. [Frank Zappa]