Help me. Its urgent

1. I have two different button, which are with audio and non audio in layout 1. So I want to make if I press the audio button, it will play the sound in the others layout, but if I choose the non audio button, the other layout will not play the sound. How can I do to make it work? Please help me
2. Secondly, how to make the audio in layout 1 will stop automatically when I change to layout 2?

1. Use a global variable for sound on/off instead of what I guess is an instance variable you're using on the button

2. There is a system condition 'on end of layout', you could use that with the Stop audio action on the layout 1 event sheet

Also if this is for help with events in Construct 2 then you posted it in the wrong place.