Several panels in the Gmail window

In the English version of Gmail, a new feature from Google Labs has appeared - support for multiple panels within one window. In other words, you can watch your mail, and in parallel you can have a window open with drafts and / or marked emails. Now you do not have to open multiple windows with Gmail. It is included in Labs (green such flask or Settings / Labs) -> Multiple Inboxes.

Not without costing a fly in the ointment ...
')

If the taskbar is positioned vertically, rather than horizontally, the contents of the window are somewhat corrupted:


PS: You can enable everywhere using a standard trick. In the settings, change the language to English, turn on the options you need in Labs. Then switch the language back to Russian.

UPD: Thank you XaocCPS for the leading questions.

UPD2: Thanks spyfzm, the bottom panel look more comfortable. And include the following: Settings -> Multiple inboxes -> Below the inbox