/*!
\page deleting_groups_page Deleting groups with content
To delete groups and their content, in the menu select
Modification -> Remove -> Delete groups with Contents
and select one or several groups you wish to delete in the 3D viewer
or in the Object Browser.
The selected groups will be listed in Delete groups with contents menu.
Then click Apply and Close button to remove the selected groups
and close the menu or \b Apply button to remove them and proceed with
the selection.
\image html deletegroups.png
\n Please, note that this operation removes groups with their
elements. To delete a group and leave its elements intact, right-click
on the group in the Object Browser and select \b Delete in the pop-up
menu or select the group and choose Edit -> Delete in the main menu.
*/