When adding filters in visual graphics or making changes we need a prompt to prevent the changes from being lost if the window is closed either by the "X" or pressing escape. (i.e. you add a ton of filters and hit escape for some reason. All of the filters must be added again with any overrides to the graphics) The same should happen in the family type editor. A prompt saying something to the effect of "All changes will be lost. Continue?" Maybe have an option to remove the prompt in user settings.