Filling up an hour

Hi,

I have a number of shows which are sent to me in multiple segments (some 2, some 4). Each week, these segments can differ in length and therefore the total time for the whole show will be different. But the overall show needs to be one hour.
Do I have to create/modify a playlist manually each week for these shows so i can fill up the time with adverts. promos. etc. or is there some way to automate this process?

Thanks

The simplest way is to have some tracks in the playlist window - when the show ends, it will continue playing those tracks, until other scheduled event starts.