There are several types of supports that you could use as an anchor. When you create a support in the PRJ, you can assign the CAESAR II support type. In the example below, I have shown the BeamClamp. You can see there is a size range that you will apply to have it different for different sizes. When inserting a BeamClamp in CADWorx if you turn on Detect Steel, it will determine the correct width for the beam clamp to match the beam.