Teams App: Ability to add diagrams which are stored in SharePoint but in .../teams/TeamNameHere/

[ShawnPOWER]

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• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Is your feature request related to a problem? Please describe.
I am unable to locate existing draw.io files stored in Teams (SharePoint path .../team/TeamNameHere...) when opening or creating a new diagram and trying to store it in SharePoint path .../team/TeamNameHere... Other SharePoint sites I have and my OneDrive are showing up fine and I can open existing or create new diagrams. The problem is just with draw.io files stored inside of the Files tab in Teams.

Describe the solution you'd like
It would be good to show a new item on the left-hand list when adding a tab to a Teams channel called "Teams" and then this lists all the teams you are a part of (in alphabetical order). Or just include these missing items in the SharePoint list item and call it SharePoint\Teams (in alphabetical order or searchable). Also, if I could just open the draw.io file from the Teams File tab and somehow add it as a new tab (like you can do with spreadsheets with the "Make this a tab" option for example). I guess another option is to just add a URL to an existing draw.io file for example which is then added as a tab would be great.

Describe alternatives you've considered
I tried to add a new diagram tab and then clicked settings on the tab hoping I could just put a URL path in for the file and it would use the new URL I provided it but there wasn't an option I could find to change the file from the tab settings. Similar to how the Teams app "Website" works and you can edit the URL after it is added.

Additional context