Homebase for Sonar users

Is there a setting somewhere that will make playback stop automatically at the end of the project? I looked through preferences but didn’t see anything.

I did a search of the forum and found a thread that suggested a few workarounds such as adding an arranger track and/or somehow defining the length of the project. But those workarounds are, well, workarounds. Does the function exist or are workarounds the only option at this point?