Thanks for all the advice. I like Ableton Live but the issue is really in the list and playback interface.
We use scenes to build all the songs in the set and then use the Enter key to trigger and go to the next one. The issue is the screen size is hard to see, there is a whole lot of stuff on the screen - we use a touch enabled Surface Pro 3 tablet - which works great but. One errant touch is adding complexity to the show for the drummer in the middle of live performance. My main talent insists Drummer cues the song so...
We are investigating moving to Sonar for a few reasons, the main is the ease of the song play list and the fact that I can simplify to the spacebar and there is nothing else to "touch"
I tried the Ctrl L solution today and will play with it further but may work as we only need a few BPM changes mostly. I also will try the quantize solution but would love to see a step by step solution. At the moment I have tried so many combinations its had to reframe the workflow.
Thanks again to the community for the comments and answers, Just Awsome!