Passing Values

With a SAP enhancement i have a new tab in IW32. The new subscreen has 2 new pushbuttons. On the click of one button i need to call a text editor with the service order number and text appearing on the first line of the text editor. The program to define a text editor is a separate Z program . Since the Service order number is AUFK-AUFNR that has parameter is set, passing the order number is fine but any tips on how i can pass the text also to the text editor ??

Thanks.