Renumbering elements via openstaad

I am trying to merge multiple models and for that I learnt the best way is by renumbering each model to a different series. I wish to write a vba code for it, but I couldn't find a renumber function for openstaad. the thread attached in the following link, says that the team is working on adding the function. the thread is 3 years old. I could not find a function for the renumbering. it would be great if some one could help me on that.

Regards,

Harshal