Voice tracks can be copied to another by exporting the hour and then re-importing the hour. This can be achieved by clicking the three-dots at the top right of an hour and selecting Export Hour and selecting the PlayIt Playout Log Format and click Export. Select the file location. Then navigate to the hour you want to re-import to using the Go To Time calendar icon and selecting the date and time. Then click the three-dots again, select Import Hour and select the file you just exported. This will re-import the same log into the new hour. The references to the original voice tracks and segues will be retained. There is a video showing the process here: https://www.youtube.com/watch?v=QoyxFhVhnxE