When a window is deleted from a surface, either at building level or at surface level then the surface is considered to be a 'custom' surface and in this case the default facade data will not affect it and any changes made to the default facade model data on the Openings tab will not affect the layout. You can check for this by going to the surface level and looking for the 'Custom openings deleted' message in red bold in  the Drawing Options panel. To return to using the defaults use the Clear to default (eraser) toolbar icon and select the 'Clear custom openings' option. Do this at the surface level to modify the settings just for the current surface or at building, block or zone level to modify multiple surfaces in one go.

This process is described with reference to a model in the screenshots below.