Hazer on for a certain time

I'm trying to get a Hazer switched on with an exec button.
Point is that is has to turn off after 30 seconds.

The only way i know is with 2 cues, one turns the hazer on and the second turns it off with 'triggerd time'
But my exec button stays on, and i would like to have it off.

I tried it as a chaser with the option 'shoot off'
That comes in handy because the exec turns itself off after the 30 seconds
But i can't figure out where to put the 30 seconds.
Can't change any parameters, they are all dark grey

So i would like to use it as a chaser with the 'shoot off' function, but where to put my 30 seconds?

I goes on directly, as long as i press and hold the exec button.
apparently delay time does nothing.

Alas, got a message unknown command.
Maybe it's the wrong number.
When i push the MA button, the exec button i use shows the number 106.
But even if i use off exec 106, the message stays unknown command

Probably it can't turn off itself but only another exec button.

Now this is strange.
OK its works, jippi
But i have to type the command with the keyboard that comes in view, and NOT my PC keyboard

Your right,
don't know how, but it works with both keyboards now.