Step 1: Select a countertop area on the takeoff.
Step 2: Click the main Set Arc button (not the dropdown arrow) directly inside Shape Edit.
Step 3: Click on the straight edge you want to curve, then drag outward to shape the arc. A red arc line will appear showing the curve, with a green guide line displaying the arc dimension. Release to apply.
Step 1: Click the dropdown arrow next to the Set Arc button and select Set Arc By Radius.
Step 2: The Set Arc By Radius dialog will appear — enter a Radius value (e.g., 1'5") and click OK.