What problem does this address?

Currently, if you want to copy all blocks, you are forced to open the options menu on the upper right corner and then go all the way down to select the entry “Copy all blocks” in order to copy them. I use this functionality quite often and it makes things unnecessary slow.

I am aware of a workaround to switch to the code editor via shortcut, select all and copy it, but these are three steps that could be one step and also switching back to the visual editor takes its time since the editor needs to re-interpret the code again.

What is your proposed solution?

Add a keyboard shortcut to allow me to copy all blocks with a single shortcut.

As a suggestion, either ⌘ + option + shift + B for the “blocks” in “copy all blocks”, or ⌘ + option + shift + C for the “copy” in “copy all blocks”. Both of them would also align with the existing global shortcuts to enter fullscreen mode and switch between code editor and visual editor. (I don’t know the Windows/Linux shortcuts, but I think you get the point.)