Add a permanently delete option to Desktop Outlook right click menu

I often need to remove a lot of larger emails or other mail items in Desktop Outlook 2016 that I neither need nor want taking up storage. Windows has the "Permanently Delete" option available for almost every context menu and Shawn has a great Tutorial here for adding that option to them.
But I have not been able to find a way to implement the same option in Desktop Outlook.

I can hold down the shift key while deleting but it would be much easier if there was the same familiar Rex "X" in
in the dropdown options. Does anyone know how to add this function to Outlook?

Also, is there a way to further customize that dropdown list so it shows the function I use a lot while removing those I have never used. The normal list is already pretty long.