Will do on watching when escape doesn't work.
Clearing current image from edit screen: Aside from I've never seen a prgm w/ editing (images, text, etc.) that didn't have ability to clear screen, at least one case I've seen where it's a problem (or maybe it's me).
Attached image shows one image that was already in editor window. There's no way to clear the screen (to blank) except restart SSC, AFAIK. If then want to open an image from disk, by "Open With" (maybe previous SSC saved file, or not), it just overlays the new opened image over existing image in editor screen. In some cases, as this one, the new image just overlayed can't be selected & removed.
There are options in the Move To menu, to Delete Current Image, but I've rarely gotten it to work, even when image in editor is selected (like via Ctrl + A). Clicking Delete Current Image does nothing for me (often), even if image shows it's selected.
In the main Objects menu, there's Delete Object, but it's always grayed out, even if an entire image is selected. Maybe it use to work, but the feature was taken out & menu never updated. Just seems like for some tasks, would be simpler to have a Delete Object or Delete Image selection / button. Or once an object is selected, R click it (as in many editing prgms) & have options like Del, Copy, Resize, Rotate - many others.
Sure, there are buttons on the sidebar & even hotkeys for some things, but most apps have a fair amt of functions avail. just by R clicking a page or image, etc. Unless one uses a prgm a LOT, they probably don't remember hot keys from (easily) 20 diff apps. I certainly can't.