[Enhancement] Option to switch between Sort or Select on Header click (followup to #4435)

[alarion-x]

This is a followup request to #4435.

Regarding the initial report:

More often than not I intuitively try to select columns by clicking on headers to copy and end up sorting it instead.
I am sure this is the case with most people who are used to click on headers to select rows/columns at one go.
If there is an option to switch between sorting and selecting, it would be a real help.

For me it's exactly the other way around. I only use the column header click for sorting. I almost never want to select an entire column and do stuff with it.
Thus, it would be excellent to simply have a user setting in the configuration dialog, e.g. under "Look & feel", to choose what the single click and the double click do (aka sorting or selecting). A simple choice via dropdown between

• "single click: sort by column / double click: select data in column"
• "single click: select data in column / double click: sort by column"

would already be enough and really cool.

[tuffnatty]

Another option is having two clickable icons next to to the column name: one for sorting and another for selection.

[pawelsalawa]

I think it (two clickable icons) may be hard to use from user experience perspective. Users would have to be very careful where they click (as such icons would probably be small).

I think that having option in Configuration dialog is good. Also having the "checkbox" in the context menu of header will make this option easier to reach.