I thought I posted this question last night, but it's all a blur...

Texas Winter Storm - federally declared major disaster (Presidentially declared), so qualified disaster loss with Rev Proc 2018-08 safe harbor methods available.  Instructions say to leave the FMV lines (Line 5 and 6) on 4684 blank and enter the loss on Line 7.  I can't find any way to do this other than override on 4684, but the result is 4 "You Must Fix This Error" messages.  I know I can efile and bypass error checking, but am I missing some way to make ProSeries happy and clear the error messages?