Hi, Thanks for this work-around. My problem is still to get Collect to copy the previous species record to the following row. Below default value definition for the species previous_species calculated attribute. tree_id is calculated using idm:position(). The attribute in this case is not calculated, I just wanted to define a default value. Based on the second answer I had the impression that this should work. Am I missing something? ![alt text][1] [1]: http://www.openforis.org/support/upfiles/expr.jpg

Hi, Thanks for this work-around. My problem is still to get Collect to copy the previous species record to the following row. Below default value definition for the species attribute. tree_id is calculated using idm:position(). The attribute in this case is not calculated, I just wanted to define a default value. Based on the second answer I had the impression that this should work. Am I missing something? ![alt text][1] [1]: http://www.openforis.org/support/upfiles/expr.jpg