Hiya @Satish_Vardha - this is currently not a feature at this time. I can’t speak to the ‘why’ part, but I understand why this would be helpful.

I made some slight changes to your topic title and added a tag so others can find a +1 easier.

Id love to see this as a feature.
We work in an unconventional canvas size in the games industry so we need to “fit to screen” as the default for presentations. It comes across as incredibly unprofessional when we have to teach stakeholders how to actually view our prototypes.