I’m wondering whether there is a way of having saving a template with a fixed timeline, so that when I start another project using that template, I only need to update one date and the rest will auto adjust. At this stage after I select the template I need to manually change each of the dates, or maybe I’m doing it wrong?
Yes you can’t change easily all the dates.
You can select tasks by grabbing them in a window selection on the Timeline, but you can’t select more than 50 tasks, thus you’ll need to do that several times if you have more. This is what I do until Asana make possible to change template’s dates easily.