Extended Trend - can't change the columns

Extended Trend - can't change the columns

Hello, can someone help me. I have Zenon 7.50 SP0 and I have an extended trend screen. I wish to edit the function that opens the screen so I can remove some columns. I get the selection window and the first tab "Data". There are columns: Curve Name, Title, Color etc. and I can remove them with right-click and "column selection" or "remove selected columns". Then I click OK to close the popup. However when I open the function again, any changes I made to the columns are undone and they are back to before. Is there a way to make the changes permanent?

This is a migrated post! Originally posted on 22.02.2017 by user mjackson. Please be aware that information can be outdated.