How to delay cue Down timing?

[Simonkbike]

Final dress rehearsal for panto tonight & just tweaking a few timings.  How do I get to adjust Down Delay on a cue.  When I click on Up or Down timings, I get Up Fade, Up Delay, & Down Fade on the scroll wheels but can't get to Down Delay - tried shift but can't think of anything else.

Simon