On 7 Oct 2016, at 18:55, Igor Kozlov wrote:

[…] It would be really nice btw if that mode could be enabled using a shortcut.

Because currently I have to use ⌘E, ⌘F, wrap the search string in \b, ⌘⌥R, ⌘↩ to find all word occurrences.

I am thinking it might make sense if ⌘E would always add work boundaries if (and only if) the selection had them (presumably even mirror it, so using ⌘E with a selected prefix would put \b before the search string but not after it).