Highlight/Bookmark visual mark

[dfucci]

I am enjoying sioyek to read and annotate papers.
My workflow is completely keyboard-driven.
When reading, I avidly use the visual mark and move around with j and k.

However, when I find a passage I'd like to highlight (or bookmark), I have to exit visual line mode (esc), enter visual selection mode (v), type the selection symbols/letters, and then highlight (h<x>) and re-enter visual mark mode.

I wonder if there is a way to highlight the current line in visual mark directly.

[ahrm]

Added a select_ruler_text command in this commit in the development branch: b7bf8d8.