It appears now that the Date of payment and 1st year of designate Roth IRA are required but they are blank on my form so what do I enter ?

Not all the boxes on a Form 1099-R will have entries. 
Box 13 is only for reportable death benefits.  Does this apply?
Is there an error message stating the fields need to have an entry?  
If not, and you do not have entries on your form,  you do not have to enter them. 

Box 11 The first year you made a contribution to the designated Roth account reported on this form is shown in this box.

Box 13 Shows the date of payment for reportable death benefits under section 6050Y.