The detailed information about APRS Stations and Objects/Items can be viewed in 3 places in YAAC:
by left-clicking on the station's icon on the map
by selecting the View->Station/Object List menu choice to view a sortable table of the current state of all known stations and objects; this view also allows creating new Objects, and saving and loading files of current Object records. Left double-clicking on a row in the table locates the station on the map; right-clicking brings up a popup menu of commands that can be executed upon the station or object.
by right-clicking on the Object or Item's icon on the map and selecting "Update Object" on the pop-up menu. The Object Editor will appear with the attributes of the Object. Objects originated by this station can also be updated.