The menu options in here are all available by use of F keys, enabling quicker access between different views of GDAT.
F1 : Notes - a place to store basic information about a match.
F2: Ahnentafel - the direct line of the match, presuming you have access to one.
F3: Family Comparison - compares the surnames and locations of the profile with any loaded for the match.
F4: DNA Comparison - compares the DNA segments between the profile/s and the match.
F5: Merge - allows for the merging of duplicate matches.