If you simply change the Display Setup from Internal Fixed Layout to Internal Display Creator, add the channels you want displayed and leave everything else the same in your Dash Manager config then it should just work.
I have tested it here, if it works with the fixed layout and as long as you leave the alarms setup in your Dash Manager config then it just works with DC.
Are you able to send me your Display Creator and Dash Manager configs that you are having an issue with? You can send them to support@motec.com.au or post them here, which ever you prefer.