17 - Mechanical Add and use mechanical equipment
18 - Mechanical Add and modify air terminals
19 - Mechanical Add and modify ducts
20 - Mechanical Add and modify return ducts
21 - Mechanical Add and modify duct accessories and fittings
22 - Mechanical Work with spaces
23 - Plumbing Add and modify fixtures
24 - Plumbing Add and modify piping
25 - Plumbing Routing preferences
26 - Plumbing Create a piping system
27 - Plumbing Add and modify pipe accessories
28 - Mechanical Define a duct system
29 - Perform interference check
30 - Plumbing Add and modify placeholder pipe
31 - Size duct and pipe systems
32 - Check duct and pipe systems and disconnects