This video shows you different examples of how you can use the proprietary data that Trackify inserts into your Facebook Pixel Events. You can also use the set of "cheat sheets" further down...
On huge take-away here is that you cannot mix event based conditions and URL based conditions in the same audience. that's a limitation inside Facebook. So, please keep that in mind when you set the filters for your Custom Audiences!
Custom Audience Filter Based on Product ID
Custom Audience Filter Based on Tracking Tags
Custom Audience Filter Based on Time and Date Data
Custom Audience Filter Based on "Other" Event Parameters
Snapchat and TikTok platforms also have custom audience builder, must check this feature.