CK4 - Possible to enable hotkey for "Paste" dialogs?

We're currently using CK Editor 4.x and it's working well, however, our users will be required to make many cut and paste changes to content in the near future. I'm attempting to configure the editor to use the Paste As Text dialog on a hotkey (Ctrl-V), but I'm at a loss as to the command to specify.

CKEDITOR.replace('editors', {
		customConfig: '',
		fullPage: true,
		allowedContent: true,		
		keystrokes: [
			[CKEDITOR.CTRL + 86 /*V*/, 'pasteAsPlainText']
		]
	});

When I use the following configuration, the Ctrl-V key combination simply pastes text and doesn't open the Past as Plain Text dialog. I can't seem to find the documentation of methods that can be called. If I change the guessed method name of pasteAsPlainText to something like "underline", then the expected underline function works.

Is this something that can be done? For the amount of work that these users will be doing, copying from the source document, clicking the "Paste as Plain Text" button and then pasting will be quite a hassle. Just removing the need to hunt for the "Paste as Plain Text" button will go a long way towards making their process more bearable.

Any help would be appreciated.