how to add a group?
enter name of group,
enter a index of group,
to save data, click save button.
...
how to edit a group?
on tab “Groups definition” select the item you want to edit
tab “Group details” fill in the previously selected item
edit necessary data
to save data, click save button.
how to delete agroup?
on tab “Groups definition” select the item you want to delete
click yes for delete,
the selected item will be deleted.
it is possible to delete only the item that is not used yet!