XGroups are containers for nodes, other XGroups and their wires. Like real containers, XGroups help you to put related items in the same box for better organization. You will then find it easier to understand, navigate and modify the expression. In addition to acting as a container, an XGroup can be connected to nodes and other XGroups. You can save and load XGroups to reuse them in other projects.
You can navigate the contents of an XGroup in a similar way to the Cinema 4D viewport. To move or zoom the contents, drag the move or zoom icon in the top right corner of the XGroup. You can also move the contents by pressing the cursor keys. To add ports to the XGroup, choose the desired ports from the XGroup’s inputs menu (blue square) and outputs menu (red square).