CORRECTION REQUESTED - for speficiations update
currently if i want to add any more speficiations to a product you have to delete all current specifications and then reload them all including the new one before they will show the updated ones on the shop front.
 
PLUS it would be good to be able to add a set of specifications to the whole category

This would be considered a bug... Please submit to ViArt and let us know the outcome of this.