Change canvas size so that red borders remain visible when zooming?

havocentral

New Member
I regularly zoom images and such in sources so that only parts of the image are in the frame of the canvas.
Every time, once the red border handle is moved out of the canvas area it vanishes, so if i need to further scale the image, i have to move the entire image over in order to get the handle back into the canvas.

I have been trying to find a way to shrink the canvas. I know that OBS can support this because the canvas shrinks to fit the window size.

How do i do zoom out on the canvas?
 
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