Came here to request almost exactly this.
In the File Open dialog (Browser might be OK but I've never really used it), it would be great to have a Preview button that plays an audio snippet associated with the project. Worst case it could be a manual thing (preview.mp3) in the same folder (or audio subfolder), and I build that once for each snippet. But ideally, a setting inside a project where you effectively mark an audio track as a "preview track" and when Cakewalk saves the file, that preview file is generated if the track has changed. The preview audio could be built into the project file itself also, but from a dev point of view I can see that getting messy.
This would save me hours every few months looking for those few bars I recorded that I might fit in a song or that I just want to play with.
I don't know how to "+1" on a feature request, so I rated this topic 5 stars