Show snapshots of selected workfile in the tk-multi-workfile2 app

I want to show snapshots for the selected workfile in the tk-multi-workfile2 app. Also I don’t want to show/open full snapshot app. I just want a custom widget (a list view widget from snapshot app) to load the snapshots within the workfile app, which updates on the user selection of workiles? I’m new to shotgun. Trying to understand the architecture of the shotgun. It’s overwhelming for me at the moment. I would appreciate if someone could guide me how to achieve this?