Please anyone know an option in preferences o in another menú to recover this function, thanks

It works for me.
 
You have to hover on the lower half of the ruler where you don't see the magnifying class mouse tip.

Yes, normally this happen but (i guess my studio operator) make a change in preferences and this function dont work anymore in X2 (X3 was ok), in my other machine work ok.
And when i installed the X3 and the last patch maybe this patch make a copy of preferences from X2 and now in X3 dont work this usefull function, thanks and i will be researching to discover this. (my english is strange, sorry)

I just successfully did it in X2.
 
I know you can do key bindings. I wasn't aware you could change the mouse behavior.

Thankyou gswitz i will try.

yes my best guess is if this doesn't work than someone played with key bindings, reset them.

chuckebaby
yes my best guess is if this doesn't work than someone played with key bindings, reset them.

Yep, resetting keybindings should work, if not, locate your aud.ini file and reboot. Sonar will create a new one when you reboot.

Thanks for your answers.
For some reason this problem depends on the project in a new project the problem does not occur.
Modifying the file Normal.cwt the problem disappears but only to new projects.

Confirmed! Double click in time ruler play only in new projects