On the General tab you can specify the title of the data group.
When you create a new data group, you have the option to select Integer or GUID for the data type of the
primary key. If the Integer option is chosen, the primary key data field will be created as data type integer,
which is the default. If the GUID option is chosen, then the primary key data field will be created as a string.
A GUID will be generated for each record and stored in the appropriate field.
The primary key data type options can only be selected during the
initial setup of the data group. If you switch to another tab in the
properties dialog, the options will no longer be available.
A data field can be selected by specifying the owner ID for a data record.