Disabling one of 2 keys (DEL & Update)

[simafrog <SimaFrog@xxxxxxxxxx>]

HI I am using one screen to update and delete, by keys. When F2 is hit that 
means Delete, when F5, update. After each key hit, there is a confirm screen, 
then rekey then done. Actually the full reconfirm is only on F2 because the 
starting point is into Update mode so I don't need another confirm. The problem 
is when F2 is hit. I redisplay the screen, and if you want to, you can still 
hit F5. Is there a way to handle this in the DDS, or must I code a bunch of 
statements only allowing F5 when there was no prior F2?
Thank you,
Rob400