Redeemable ground rent - Where do i enter this in TurboTax. IRS Publication says it is considered mortgage interest. I do not have a Form 1098

The land we have our manufactured home is leased and is a 30 year lease.  I understand that I am able to utilize the Redeemable ground rents based on the IRS Publication. I do not see where I can enter this data in Turbo Tax.  IRS Publication states it is considered mortgage interest, however I do not have a Form 1098 from the land lease payments.