Move keyboard focus to SA, when file is opened

A small QoL improvement request.

When opening a SA, all steps in v6 are now collapse.
To expand, it requires two more clicks - right-click to open menu, and left-click to select “expand all” option.

This can be done via Keyboard also, but when opening a SA, keyboard’s focus still remains on the SA list.
The request is - when opening a SA with double-click, move the focus to opened file, so that I can right click and select expand all option, all by keyboard - which will save me a couple of seconds.