Object groups in dimensioning general arrangement drawings
In dimensioning of general arrangement drawings, the term object group refers to objects that have been grouped together for the purpose of dimensioning object groups on different dimension lines.
You can use the object groups (selection filters) that you have created in the model, or create the necessary groups through the Parts tab in the General - Dimensioning Properties dialog box using the Object groups button. For example, you might want to create an object group for beams of a certain size.