This window allows the user to add or edit trackers used for a transfer. It is accessed by right-clicking the current list of trackers and selecting "Edit Trackers".
Tracker URLs should start with http: or udp:
Only one tracker at a time is used within a group. Groups are separated by a blank line.
Duplicate groups will be removed when OK is clicked.
Note that a working tracker is not necessary for proper operation. If the DHT is running it will usually gather enough peers to bootstrap into the swarm.
For more options relating to trackers and how they are announced, see the Settings - Transfers - Trackers help page.