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Wingsmith - I'd prefer a 'normal' context menu, as I have in other computer application software, including the calibre library manager, the calibre editor, browsers, WP, spreadsheets etc. One that I can navigate with the keyboard, configurable would be nice, but not essential.
Why? Because of disability I find point and click interfaces awkward and inaccurate. Whilst my keyboard shortcut memory capacity is pretty good, it isn't infinite
By way of illustration, this is my calibre library manager setup
The Preferences menu item (top left) is there because… Ψ³
Coherent Fluent ribbons are OK too, I can drive them with one finger
BR