We use "Schedule Publish Phases Separately" extensively where we schedule when content will be generated and when it will be placed online. This helps us a lot with time sensitive publishes since at the time when the content needs to be available/Go Live, the only thing left is deployer deploying content which is very fast, rest everything is already done (rendering etc which takes a lot of time).
The scenario where we are facing issues right now is that if before the placing the content online we want to change the time of when it should be placed online, there does not seem to be any option apart from deleting the current transaction and creating a new one. But this means it has to go through the whole process from rendering to committing deployment (if the content is already generated) which is definitely not desirable. In essence I am looking to change the time when I want to place the content online post when it is already generated for an existing transaction
Am I missing any setting here? Is there a way to do it from CME? I know a hack which may work which relates to changing values in the CM DB table which I definitely do not want to do.
We are on Tridion 2013 SP1 HR1.