To start working with groups, choose the corresponding mode in the 'Trailers' panel.
To create a new group of trailers, press the 'New' button. Enter its 
name and description. The trailers to form the group are chosen in the 
list at the left. The contents of the list can change according to the 
option chosen in the filter above. It can display all the trailers, a 
group of trailers (the names of the groups are shown in brackets) or the
 trailers outside groups. Move necessary trailers to the right list 
using double clicks or the 'Add' button. Press OK.
A list of created trailer groups is displayed in the work area. Groups 
are arranged alphabetically. The same as for trailers, a filter or a dynamic search can be used for groups. Moreover, groups can be edited, copied, or 
deleted. Note that upon deleting a group you can not delete its 
contents.
Trailers not included in any group can be found in the 'Trailers outside groups'.
Series of standard actions are available for trailers in a group (unfold a group in order the corresponding buttons to appear).