Duplicate elements on a diagram

[pH]

When a diagram is manuallt created it prevents dragging of same element multiple times. But when elements are added through script it same element can be added multiple times. IS there any way to automatically control it (like ignoring duplicates)?. If not, any suggestions on whats the best way to avoid duplicates?

thanks,
pH

[beginner]

The Sparxian know about that (since years). It's up to you to check diagramobjects before you add a new one.

b.