The Edit Multiple Pipes command needs to have the ability to change fixture units. Sometimes I forget to add fixture units to hot and cold water pipes I'm copying to other sink or shower locations and then I have to change each one individually or erase them and copy them again after I've added fixtures units to the first one to be copied. The current project I'm working on is a large university sports complex with a lot of locker rooms so you can imagine the number of showers, sinks and toilets, etc.

Be able to create plumbing and piping fixtures, similar to light fixture or receptacles in DM Electrical or diffusers in DM HVAC.

Especially for waste and vent sizing, the conversion from fixture units to pipe sizing is standard for all cases for the UPC and IPC. Generating sizing charts for cold and hot water, automatically through a series of settings possibly, would be probably more difficult to implement but equally helpful to make sizing plumbing easier.

In the UPC and IPC the conversion from water closet counts and urinal counts to a number of fixture units is a standard table. Adding this to Design Master would be a small change yet very helpful.

Would be great to be able to copy all piping, including risers to other drawings. Even if you had the option to change risers to pipe I think it would be helpful and save time from having to chase down and draw all the risers a second time.

Premade blocks similar to what is used in both HVAC and Electrical could be inserted into the drawing with predefined fixture units. The fixture units would be stored into multiple headings with IPC and UPC fixture units. The connections would be there with predetermined heights as well.

Our plumbing drawings will typically be drawn with supply and drainage on the same drawing. It would be helpful if only the drainage piping caused breaks with drainage piping and the supply piping with only the supply piping. Additionally we place venting on a separate layer. I am thinking that you could place different pipe types into different categories and they would only affect pipe breaks on pipes in their category.

When connecting a new waste pipe to an existing pipe, draw the chamfer between the two using the new layer system (not the existing layer system as it currently does).