Read field attributes from other dynpro

Hi all,

I have created a tab in tx ME2xN with a checkbox field but I need to make it ready for input or not depending on the fields of the table control in the Item overview.

Loop at screen sentence only reads the attributes from the current dynpro. Then my question is: how can I read the attributes of another dynpro field than I'm modifying?

Many thanks in advance,

Ruben