Hi what I want to do sounds simple in essence. A set of layers are given a rank. The tool (I was thinking UNION or an iterative UPDATE) would then create a featureclass where the top ranked layers extent would overrule all other extents, then the second, third and so on.
Its best if the layer DISSOLVES each input so only fid of feature class is needed.
Is there a simple way in model builder to do this? create an ordered extent model?