How to activate the debug mode?

You could need the activate the debug mode if you want to really track how your campaign is doing. You will then have a lot of information about all the automatic launches: if the visit successfully found an element, how long the visit last, which parameters are used, etc. 

To activate the debug mode of a campaign, you first need to activate the expert mode. Then go in the "Settings" page of your campaign. A new line "Debug Mode" will appear. Just activate it: