ModifyGroup
Open
The Open Group command enables you to open a non-shared group or a view so that you can edit or delete the entities inside it but not add new entities to it. You can use Open all () button to open all the closed groups and quit the command.
The Open Children option enables you to contemporarily open all non-shared groups or views inside a selected group.
To add new entities, the group or view must be set as the Current Group.