Keyboard shortcuts for evince annotation?

I would like to make c a shortcut for inserting a comment and h a shortcut for highlighting. Other keyboard shortcuts could do, e.g., if modifier keys are required. Pressing one of these keys would be equivalent to pressing the annotation icons in the toolbar:

... so that clicking/selecting using the mouse afterward would perform the desired action. This would immensely improve my reading flow! Is there a way to do this?

An added bonus would be a way to map CTRL + Z to deleting the last annotation.

Solution 1:

The feature was added just one month ago (Aug 10, 2018) to evince.

I guess it will be available in the next evince version 3.31. The shortcuts in the addition are "S" to add text annotation and Ctrl + H to add highlight annotations.