I think you mean with a corner stamp, the title block or a sketched symbol. with both you can do this. It starts with creating a multi value parameter with the names of your title block or Symbols. You can use this parameter to show on your form. You can create rules, to add and remove symbols or title blocks.
for Title blocks there is a standard snippet:
ActiveSheet.TitleBlock = "My Title Block"
for symblols you can use:
Dim oSketchedSymbolDef As SketchedSymbolDefinition
oSketchedSymbolDef = ThisDrawing.Document.SketchedSymbolDefinitions.Item("notes")
Dim oPoint As Point2d
oPoint = ThisApplication.TransientGeometry.CreatePoint2d(10,10)
Dim oSketchedSymbol As SketchedSymbol
oSketchedSymbol = ActiveSheet.Sheet.SketchedSymbols.Add(oSketchedSymbolDef, oPoint)