Perfect, thanks.

I have added this request to the tracker:
Issue 2180 – Open files and folders with a single click
You can vote for it there.

Yes pls.

Single click open would be nice. It is an option in windows too so for people that use it it would unify their operation.

Not a bother, much appreciate.

OK, I see. I didn't know that feature. Thanks for your suggestion. We will see, if more people ask for this.

One good example of implementation of this very sophisticated functionality is 'Total Commander', a two-panel classic file manager where you can specify to 'Open files and directories with a single click' under Configuration > Operation > Main program section.
Saying that, pretty much any file manager I've used would have this option or it would simply respect the system-wide click policy, apparently not WinSCP.

Why do you expect there is one? Does any other software have such behaviour/option? If you want to navigate using a single-click, use the directory tree:
https://winscp.net/eng/docs/ui_file_panel#directory_tree

Is there a setting to set single-click file/directory open in WinSCP?
I could not see it anywhere.
Thanks in advance,
/SM