Hello
Today I installed latest FNC UI Pack 6.5.1.1, I am glad that you solve ALMOST every detail concerning to TileList however I have bad news for you.
So I recorded again two videos with the same latest UI Pack mention above, but this time compiled with Delphi 11.3 and 12.3
Delphi 11.3 with FNC UI Pack 6.5.1.1
https://timbralofacil.com/descargas/tms/tileDelphi11.3.mp4
Delphi 12.3 with FNC UI Pack 6.5.1.1
https://timbralofacil.com/descargas/tms/tileDelphi12.3.mp4
The point I need you to remark as bug on the video of my App compiled with Delphi 12.3 is concerning to the right & left arrows navigators used to move between pages, as you can see when I press quickly left or right arrows the TileList hangs up until I wait probably 1 second and then press the same arrow again. If I press slowly the left or right arrow navigators then your controls move forward or backward as expected but this behavior does not occur with Delphi 11.3, so I don't know if the new Delphi affect your control but you must to solve that because is the latest Embarcadero release.
I want to thank you for all your effort in order to solve this issues.
Best Regards