Make context menu customizable

[jadO]

I would like to see the option to add and remove context menu items to my liking. There are 2 suggestions coming with it:

1. From Windows Explorer you know the option to hold shift key while doing a right click. This expands the context menu and shows additional options. Something like this would be great for XnviewMP as well to avoid clutter of context menu

2. Even better would be if there is an option to add or remove whatever menu item to the context menu to my personal liking.

Best would be to combine both methods. So you would have a standard context menu on right click and a customised on when holding shift and right click.