I described two things, so it would be better if you told me exactly wich one

for #1
create a button called "all off" that turns the stuff

create a button delay15
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts
- delay (90) =1.5minuts

create a button called sleep 30 min
- delay15
- delay15
- all off

for #2

look at [Link: remotecentral.com] there is an example