How to use FORScan to adjust tire size

[GPChaluyen]

I try to put 2609 mm circumference but it does does not accept. but it accept maximum of 2420 mm.

[SEBYER]

Has anyone had issues with not having the relearn tab for the PCM? I have a 2012 Superduty that i just installed a 6 inch lift with 37 and trying to set speedometer using FORScan and can get size set but don't have the tab for relearning of the modules
Any help would be greatly appreciated.