Show navigationUnion > Solid Overview of Functions Merges solid geometry from 1D, 2D, and 3D objects.Details of FunctionsGenerate TabOn/Off Option When checked, one new original shape is created by applying Unite function to the original shape of the target object.Only 3D objects (Member, body) can be selected as target objects. Select target Select the Master object (1D, 2D, 3D part). Select tool Select a tool object (1D, 2D, 3D part). You can select multiple tool objects.