This is a fully shaded model, a carrara preset, with only one shader. This is the shader applied to the domains with the instance selected. (btw I do use the right hand menu tabs, pretty much exclusively, tho not relavent to either issue.) Dragndrop is not an issue neither is basic shader usage. This originally was about changing all the shaders at once. You cannot not do this w/o a layers list currently.You can't group shaders, assign them at once or even select all. You will have to assign each shader to a domain individually whether you dragndrop or not unless you use a layers list. My current issue is I had a normally working button that now doesn't work for no apparent reason.

No need to think outside the box....
    Just make it invisible.