Here is a copy and paste from an OmniPro 2 firmware manual which explains the HLC UPB room methodology of what you are asking about.
Personally I just have a regular UPB switch in the #1 position of room controller. I did not group my switches in the HLC methodology.
I upgraded here recently to many dual load / multipaddle UPB switches which are room controllers.
Google here on the forum and you will find a granular explaination of using HLC/UPB switches with the HAI panel.
HAI Lighting Control (HLC) Format
HAI Lighting Control (HLC) combines HAI UPB™ Wall Switches,
Dimmers, and Modules, HAI UPB™ Room Controllers, and HAI UPB™ House Controllers to create lighting scenes that set the proper mood and ambiance for various activities.
HLC format is a defined structure for configuring, programming, and operating all the HLC lighting devices in your home. HLC uses UPB™ technology which is a new powerline communications standard for lighting and home control. UPB™ is a robust, two-way digital powerline carrier communications protocol which transmits signals over the existing wires in a home.
OmniPro II groups devices by “House Code”, which consists of 16 consecutive unit numbers, starting at Unit 1. Each “House Code can be configured to a different lighting protocol format such as: Standard X-10, Extended X-10, Lightolier Compose, UPB (open UPB format where you can use the programming capability in the OmniPro II controller to communicate with the UPB network), Lutron RadioRA, or HAI Lighting Control (HLC).
Each “House Code” that is configured to use the HLC format consists of 2 rooms with up to 8 HLC devices in each room. OmniPro II supports up to 31 rooms of HLC lighting. OmniPro II can control up to 248 HLC devices. Each HLC device (Switch, Dimmer, Module, Room Controller, or House Controller) has its own Unit ID (1-248). HAI manufactured UPB™ devices (collectively referred to as HLC devices) can be configured using an Omni console or OmniTouch touchscreen connected to the OmniPro II controller. Other UPB™ devices may be used in the HLC structure, but cannot be configured using the OmniPro II controller; they must be configured using a PC running the UPB™ UPStart configuration software.
About Rooms
Each “room” of HLC lighting consists of 8 consecutive unit numbers, starting at Unit 1 (i.e. Room 1 = Units 1-8, Room 2 = Units 9-16, Room 3 = Units 17-24, etc.). Each room can consist of a maximum of 8 HLC devices, configured as follows:
Up to 7 HAI UPB™ Wall Switches, Dimmers, and/or Modules (for controlling up to 7 lighting loads in a room or area)
- 1 or more Room Controllers (for setting scenes in a room, turning the room on and off, and dimming and brightening the room)
- 1 House Controller (for controlling up to 8 rooms of HLC lighting)
- 1 or more House Controllers (used as a general purpose 8 button keypad controllers)
The first unit number in each room (i.e. 1, 9, 17, 25, etc.) is reserved for controlling the room. The name for this unit should reflect the room name (e.g. Kitchen, Great Room, Theater, etc.). HLC Wall Switches, Dimmers, or Modules cannot be programmed to these unit numbers. If one or more Room Controllers are used, the first Room Controller should be set to the first unit number in the group (i.e. Unit 1); additional Room Controllers can be used by setting each to any other unused unit number in the group (i.e. Units2-8).
About Room Controllers
The HAI UPB™ 6-Button Room Controller allows for lighting control of a room where HAI UPB™ Wall Switches, Dimmers, and Modules have been installed. From a Room Controller the room can be turned off (all loads in the group are turned off), turned on (all loads in the group are turned on), brightened (all loads are brightened from their current level), dimmed (all loads are dimmed from their current level), or set to one of 4 lighting scenes (A-D).
OmniPro II Version 2.9 Firmware Release
Can I configure non-HLC products to work like the HAI Lighting Scheme?
JonW has a very nice to read FAQ posting here about configuring your panel UPB switches in HLC mode.
Best to go baby steps as stated above and earlier.
Write up a little document for your own set up documenting what you have configured relating to zones and units.
Register on the PCS site, download Upstart and use the design tools for you UPB network if you like it. (this is different than HLC).