Create an object groups:

1. Within the Object Navigator, on the Object Groups node position the cursor and select

Navigator   → Create

An object group with a default name is inserted under the node. Whenever you double click to expand the objects and the Object Group Children nod appears.  An Object you add to the group appears under this node.

2. In the Object Navigator, drag and the desired objects under the Object Group Children node.

To erase objects from an object group;

In the Object Navigator, select the objects you need to remove from the group and select

Edit --→ Cut, Edit-→ Clear, or Navigator -→ Delete.

Removing an object group and object from does not delete the object from the module