Proxy and preview scaling are fundamentally different, the preview scaling just adjusts what size the viewport is rendered at, a proxy loads a different file into the editor and then replaces it during export. For shotcut to export a single frame the way you’re suggesting it would have to load the master file to export that frame every time it was done
Hi @D_S. I gave Proxy Scaling as an example.
I know next to nothing about programing so I don’t know if what I suggest is easy to do or if it’s even possible… But in case it is, if it turns out that having Shotcut “load file in the background+export frame” doesn’t take more time than manually “TurnOFF Proxy+Export Frame+TurnON Proxy”, I say let Shotcut do it
And if I’m not mistaken, when you turn Proxy OFF, Shotcut already loads (or reloads) all the master files anyway. But for this it would only need to load one file.