Hi M J,
Thanks for letting us know about your trouble finding products with "Flexbus" in the selector.
If you face another issue related to the Product Selector, please let me know posting a message on this group:
https://community.freescale.com/groups/parametricfeedback
The goal of this group is to inform the new features, know issues and to hear all your feedback related to the tool.
I will follow up on your request and let you know my findings.
Thanks!
Mauricio.