Ozi,

While programming the keystrokes for your activity, when you get to where you want to insert a delay, tap the "wrench" icon in the bottom left corner of the screen. In the menu that pops up, one of the choices should be "Add Delay". Selecting that will present you with a drop-down list of delay times to choose from. If you need a longer delay than the largest one in the list, just repeat the "Add Delay".

However, if what you really want is for the DVD tray to remain open indefinitely so you can load a disk into it, you are better off programming the second half of the key sequence onto a separate button, e.g. an "Automated Activity" button on one of the DVD control pages. Then just have the first sequence end with that page displayed. Once you've loaded the disk, tap the second button to close the tray and finish the sequence.

Alfaman.