Am I Able To Customize The Reports Inside Wicked Reports?

Short answer; No. 
But, the more important question we think you should be asking yourself would be "What data do I want to see?"
For example, if you're wanting to just see data for a specific Facebook Ad or Audience, you can filter many of our reports to get just that information. 
We work with some large clients who rely on our accurate reporting. These clients also require very sophisticated reporting, that Wicked Reports provides. 
If you're not able to find some of the data you're looking for inside Wicked Reports, you're welcome to join our weekly Office Hours Webinars calls.
We host one call per week and they are LIVE calls where you can get your questions answered in real-time.
You can sign up for those here: https://info.wickedreports.com/office-hours