When I use the following syntax in a process
DISPLAY URL 'http://dev01/TTCSalesCRMEmail/TTC_SalesCRM_Email.application' IN CURRENT TAB
If I save it when I am looking at it the rule via the Textual Form it saves it in the format as above. If I use the Standard Form it replaces the IN CURRENT TAB with IN TAB. It isn't just limited to this parameter. If I try any of the others, I see the same type of disappearing values.