Ability to jump to open room with Alt+number or similar (v3 parity)

In Hipchat v3 on Linux, I can jump to e.g. the 6th room I have open by hitting Alt+7 (the lobby being the first "room"), I suppose. Hipchat v4 doesn't have this, and it is cumbersome to use Ctrl+Tab to jump one at a time though the list (or worse, Ctrl+Shift+Tab when the destinationn room is above the current one – this is very hard to do one-handed on a standard US-English keyboard.)