This command moves you to the specified stage in the specified quest.
setstage [quest id] [stage id]
|Quest ID||The ID of the quest you wish to set the stage of.|
|Stage ID||The ID of the stage you wish to move to in the specified quest.|
setstage C00 20
The quest "Take Up Arms" has a quest ID of C00. Stage 20 is the 2nd stage in the quest, named "Train with Vilkas". This command would move you to stage 20 in the quest "Take Up Arms".