Show Zebras / False Colors Only While Adjusting Exposure

Hoping to have the option to see clipping zebras while, and only while, manually adjusting the EV slider, as that is the exact moment when I need them the most.

Context: usually when I spot something, I take out my phone → open the camera → point and frame the scene → adjust EV on the spot → take the shot

Being able to see zebras on the spot could drastically enhance my shooting confidence and streamline the EV adjusting process.

Reference: Not boring camera did that very well!