After seeing this post - https://forum.webflow.com/t/add-text-overflow-ellpisis-and-white-space-nowrap/37355/1
How about a section at the bottom of the "Styles" panel call "Others". In it there would be the ability to add one of the many properties which isn't listed in the "Styles" panel.
The user would simply select the property from a drop down menu - or they would type it and there would be an auto-fill (maybe the same as editing or adding a property in Chrome Developer Tools - F12 key). See image below.
What do people think? What does Webflow think? @PixelGeek