Some of the tasks in my Smartsheet project have fixed dates that can't change dynamically ( ie, scheduled training sessions ). I'd still like to list them as dependencies for other tasks. I'm assuming there is no way to do this, based on other discussions about being unable to fix dates for tasks. I don't see how complex projects can be managed in Smartsheet without being able to fix dates for some tasks and milestones. I've read about the start-to-finish for working backwards from a project deadline, but in my case it is just some tasks in the middle of the project that can't be moved timewise.