Guild Wars 2

So last night I finished the Entanglement Living Story. I really wanted to go back into the final step and see the Cutscene again, a Guildie suggested I go through with a Tonic, so I was super excited to go do it again. I clicked on the Personal Story tab and clicked Redo and was disappointed because I had to do the entire Entanglement story from the beginning. Was this intentional to prevent farming in some way?

You don’t have to do the entire story, you can just go to the check points where the particular chapter of the story kicks off. They should show in purple instead of green. When I did the first chapter and started again I thought I would have to do the whole thing from the beginning, but once you restart it, all of the check points will be available so you can do it at your leisure.

Basically what Azrael said, but you do have to complete all of the steps to get rid of the tracker (I think anyway).