Allow quota view (bar-graph?) on main mail view

I use an IMAP provider which has a fixed space quota on their server.

I can view the quota in eM Client by looking at the properties for the mailbox (see below), but it would be useful to have an option to display this without diving down into menus, so that I get early warning of the mailbox filling up.

Thunderbird, for example, has a bar graph that turns amber and then red when you begin to approach the quota.

Could we have some similar visual representation in eM Client?

Even just an option to move the existing bar to front page would be good.