Range Selection
A range selection mark is a mark in the text to be used to add selection up/down/right/left. In order to drop a range selection mark, switch to NORMAL mode then press:
<Control-v>
It will appear a msg on the statusbar saying that mark selection was dropped at the cursor position. The keycommands to add selection up/down/left/right use this mark as a reference.
Once a range selection mark was dropped, press the below keycommand in NORMAL mode:
<Control-k>
It will select/unselect one line up from the range selection mark position.
There is a keycommand to add/remove range selection one line down, such a keycommand works in NORMAL mode as well. Drop a selection range mark then press:
<Control-j>
That will add/remove range selection one line down from the range selection mark position.
The keycommand below add/remove selection from the range selection mark:
<Control-h>
The keycommand below add/remove selection from the range selection mark position:
<Control-l>