Yes everything will be configurable and toggleable. Players will be able to use it at any time in game. I will be adding a start/pause/reset button to clear out the results. Additionally there will be a sub menu that will allow you to select who you are tracking damage from. When in the open world that list will be populated with anyone youve targeted. In pve the list will be your group/raid, in organized pvp the list will include your group and the enemy.
Users will be able to control the size of both elements as well as color/font sizes.