How to get Reference Doc from copy from button

Hi..

I would like to know if there is a way to get the source document or reference document number with-out sdk or add on development , if you used the copy from button to populate the data?

sample

in order entry you can populate the data by using the copy button then choose sales quotation, then using formatted search or select statement could i get the source documents (sales quotation number)..

thanks

Loren