Question?

Should there be more than 1 scene? or just plan everything on 1 scene but if we can use more than 1 scene how do we tie them together with coding? like for example if you press a button, how does it open a section from another scene?

So, my question is what command ties them together like scene1 to scene2 and point to an effect in the timeline.

If anyone has the answer please share because i'll be up all night until I figure it out :)

Thanks Again,