The 
Group properties window allows you to show/edit group properties. To display this window select a single group in the Group pane and select Edit>
Properties or the equivalent Main tool bar button.
Group
Name is the name of the group. PerfectTablePlan will attempt to guess a reasonable name from the names of the members when the group is created, but you can change this at any time.
Notes is for any general notes relevant to everyone in the group. Click on Stamp >> to add a time and date stamped comment to the top of the Notes.
Contact
These fields store contact information for everyone in the group. This can be useful for creating address labels.
Buttons
Click on the 
buttons to display the properties of the first, previous, next or last group. The groups are ordered alphabetically.
Click OK to accept the changes and close the window. Click Apply to apply the changes without closing the window. Click Cancel to discard the changes.