Thank you Npole. Will try that. Appreciate your suggestion.
One more advanced thing is to assign the focus to a Function key (to a separate button) and disable the autofocus on the trigger (because with certain housing can be hard to only half press the shot button). This way you have the autofocus completely separate from the shot button. The downside is that if you want to take shot of moving subjects, you have to press rapidly two buttons. I never tried if it's possible to leave the focus+shot to the traditional shot button, but then assign the non-focus+shot to a Function key... this way you will have all the possible combinations that you can use according to the situation. The great thing of the M5 Mk2 is the high customization of the camera functions and keys.