Keyboard access to Option Bar

[Semaphoric]

Is there any way to make the Option Bar get focus via a keyboard shortcut? I often apply transforms using numeric entry in the various fields, and find it annoying that I have to move from the keyboard to the mouse and back just for a single click.

[c.pfaffenbichler]

I know no immediate option; I supect using a mouse/keyboard-recorder might offer a work-around. 

[J453]

Enter Key puts the focus on the option bar, then you can use tab to navigate fields.

[Semaphoric]

The Enter key just closes Free Transform with no entry. I tried both main and numeric pad Enter keys, with all sorts of modifiers. No luck.

[c.pfaffenbichler]

Enter confirms a transformation, as @Semaphoric described, so it doesn’t work in this case.