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.

[trumpetman]

me too - I vote for this

[gvvsss]

Much needed feature, especially when dealing with 10 or more accounts...