General information for each basin is entered by selecting a basin and choosing the Basin Data dialog. If multiple basins are selected, some fields will not be able to be edited (e.g. Basin name and Area), while others will be "grayed out". These other fields are in Multi-select mode. If you select and assign data to these fields, this data is assigned to all the selected sub-basins.
Related Topics:
TR20 Overview
Editing TR20 Parameters
Area
Curve Number
Name
Time of Concentration
Defined Cross Section
Defined Reservoir