Group Email Accounts into groups (folders)

[OG]

This suggestion is for Thunderbird.

I'd like to be able to group email accounts into groups/folders like in the screenshot below:

I know there is Profiles, and I used them but I need grouping of accounts as well.

[Jon]

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[OG]

Grouping Email Accounts into groups (folders) is great. However, today when I was adding a new email account I made for my media devices, I realized I have too many email accounts, and a search bar over the Folder Pane to search just email accounts would be tremendous for those of us who have many email accounts.