Sometimes when you have multiple DateActions/Aggregates all set to 'Fetch' 'At Start', the ones you really care about finishing first are only qued last which is very frustrating. They are all started at the same time of course but due to a limitation of 6 async calls in the browser some are qued to only start later once the first 6 are finished. But you don't want to set some to OnDemand to fix this since that will slow those ones down.
It would be great to be able to set priority status onto specific of these aggregates/DataActions to that even with all of the set to 'At Start' there is further control to say which must be done first by the browser.