Is it possible to create a selset of nested blocks? The blocks I'm looking for reside in the XRef that is attached to the drawing I am searching in. I've tried this ss filter with no success '********************************************************* Here's my code: intCodes(0) = 0 'entity type intCodes(1) = 2 'block name intCodes(2) = 8 'layer name varCodeValues(0) = "INSERT" varCodeValues(1)= "MLL4" varCodeValues(2) = "3080PL|AL01" 'build selset Set objSS = ThisDrawing.SelectionSets.Add("GETML") objSS.Select acSelectionSetAll, , , intCodes, varCodeValues