In report filters there used to be a "tag does not exist" option. It's not there in TMG8! What happened to this option & why was it removed?
It was a useful option because one could run a report listing the people, for example who were missing a birth tag, and then correct that omission with an estimated DOB.
This filter option was also useful for getting a more complete list on other filters. For example, if one wanted to learn which people in a project were living at the time of the 1940 census, a filter such as: "birth date comes before 1940 and death date comes after 1940" will yield ONLY those people in the project who already have both a birth tag and a death tag with a date therein.
But changing that filter to: "birth date comes before 1940 and (death date comes after 1940 or death tag does not exist)" would also yield all the people in the project who were born before 1940, but are still living! There could be many of these additional people.