I know that we could use the copy button to accomplish this. However, I would like to have a method for adding the exact same project w/ tasks to every store. It would preferable if the tasks came over with task name only. The ultimate goal would be clicking add new project from the stores form, then select 1 of 4 possible project templates. The project/template would already have the correct tasks added to it.
Just make a model Project with its set of Tasks but do not attach it to any Store.
Locate the Copy Master Detail wizard dialogue in
Follow the steps and use the option to "always import tasks from the same project". That will make a button to do just that. get that working first. I suggest a summary field to count the number of tasks and a form rule to hide that button once there are >0 tasks on a Project.
Then repeat for the next 3 Projects and their Standard tasks, and the three more button and same form rule to hide them once the project has tasks.
So you create the project header, save, Import the set of task from a choice of the 4 buttons, and then the 4 buttons will disappear due to form rules.