Now you work on elevation and Family with your design with element use model in place command for concept mass of your project also Use for family this main 5 command..
1 Extrusion
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2 Blend
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3 Revolve
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4 Sweep
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5 Swept Blend
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main Combine Video of with how to use in project
Model in place
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use for Revit MEP blow Channel Its very useful For who want to Learn REVIT MEP
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