If you want to use the Old filter, you have to switch on the buttons Filter and Old. Optionally, you can write a string into the entry field to compare the old data records with it.
Old filter without string in the entry field
db_filter_old1_on
With the Filter and Old buttons pressed all data records are shown which are labeled as old.
Old filter with string in the entry field
db_filter_old2_on
With the Filter and Old buttons pressed all the data records are shown which are labeled as old and in which the entered string is present in one of the data fields. Text matches are shown in red.
Notes
You can apply the Old filter in conjunction with the Key filter and the Compare whole text filter.
