This idea has been merged into another idea. To comment or vote on this idea, please visit APP-I-286 Template for to-dos within phases and milestones template.
Currently, the To Do's can be created related to a specific Release Phase or Milestone, but not created within the Release Template. Only way I can have a set list of To Do's for my new releases is to copy another release.
We are likely to implement this feature - we have merged it into this request: https://big.ideas.aha.io/ideas/APP-I-286