Similar to how you can right click to add leader lines when labeling diffusers, it would be helpful to be able to right click duct labels to rotate them instead of making this a two step process. Also, rotating it would remove the arrow that sometimes accompanies the duct label.

Have a custom circuit description that is automatically used when the breaker size is set to "None" for a circuit.

This command would be invoked from the panel circuiting dialog box, and would highlight all circuits fed from a particular panel.

Be able to specify a custom description for the voltage on light fixtures when they are set to "Universal". Currently DM lists all the voltages that are used on the fixture. This feature would allow you to override that and specify custom text for the voltage in order to better match the manufacturer's cut sheet.

When a VAV zone has people diversity specified, update the zone airflow. Currently, the zone load is updated, but the airflow is not.

Calculate single line-to-ground faults (NEC 230.95).

Fix the diffuser callouts so they can be moved more consistently and reliable with grips instead of using the "Move Callout" command.

Create a ventilation schedule that corresponds to what is required by the IMC.

Have an option to insert a 24x24 box around an diffuser for use in RCP's.

Be able to change the circuit a device is on and not remove the loops connected to it.

When you copy an equipment group, copy all of the equipment connections in it, too. (Currently the group is copied and the group settings, but not the actual pieces of equipment in the group.)

Be able to set a different layer for the schedule header and subheaders.

Be able to break the loop going from an equipment connection to a disconnect.

It would be nice if you could add layer control commands for the associated photometric calculation layers (both general and egress) to turn them on and off like you have for room layers and duct centerlines. The boundaries, foot candles and contours can really clutter up the drawing. Also make it so that when you need to run a general or egress calculation the respective layers will turn back on automatically.

For takeoffs, provide a way to separate overhead and underground wires and provide lengths for each type.

Be able to specify a pressure drop in the ductwork that changes based upon the airflow in the ductwork.

We currently allow you to lock a specific pressure drop but it does not change as the design changes. Instead lock an equivalent duct length or something similar that would change based upon the airflow.

In the diffuser definition dialog box, designate whether it is a 1W, 2W, 3W or 4W diffuser, then attach that number of arrows. When placing the diffuser, allow the user to rotate the diffuser to align the appropriate air flow direction.