In Flexitive, we prepare the click tracking for every export. We have chosen not to include other forms of tracking in order to make sure that we interfere as little as possible with your current workflow for reporting.
You can add a tracking pixel to your design prior to uploading it to your ad server. This is done by making edits to the index.html file in the case of ZIP exports, or to the script that you upload to your ad server for Tag exports.
Tracking pixels need to be tailored to fit the information you need to track, as well as to fit the specifications for uploading to your ad server.