Just change the name of the bed to the same in the scheme settings. For example, fabric A, fabric B and fabric C are three kinds of fabrics. If fabric b and fabric c are replaced by fabric a, then only fabric a needs to be selected to have three materials in the layout. If you want to put

lining

Also line up together, change the lining into fabric A, and you don't need to line up together to change it. In fact, you don't need to change it to fabric A, just change the word casually, as long as the name is the same.