FamilySearch Indexing: Denmark—Probate Index, 1674–1851, Additional Helps
This site has information on Parishes, Districts and Counties. 
Question: If the Date probate completed is blank, and a Date probate began is provided, is it advisable to enter the Date probate began?
Answer: Yes. The Project Instructions have been updated with this information.
Question: If two spouses are listed, we add another row (two rows total). If two residences are listed, we add another row. What do we do if there are two spouses AND two residences? As an IT guy, I would think that you would add three rows (four rows total), and we would index each spouse at each location, since you don't know where each spouse lived, so you have to cover all the bases - is that correct?
Answer: This is correct. The Project Instructions have been revised to explain this.
Question: Probate cards often do not have the name of the parish or city field filled in, but the district (herred) is often filled in. Am I correct that you do not want us to use the district when the parish is blank?
Answer: This is correct. Do not index the district in place of the probate field.