Deductions & credits

I am donating appreciated real estate and my donation present value is 10.011%.  So I am entitled to that percent of the appraised value as a donation.  I did not see any place where you can check a box etc to describe such a partial interest.  In rereading this thread it does sound like such an option does not exist.  Worst case, since the return has to be mailed in I can just do 8283 manually.  AS long as the correct info gets to the other forms.