RapidHA and RapidConnect both support 'native' clusters (full list for RapidHA and RapidConnect) that automatically configure all mandatory cluster attributes and some of the more commonly used optional attributes.  

MMB Networks RapidConnect Desktop application makes adding non-native clusters trivial by providing a fully configurable endpoint widget. See here for more details.

Alternatively, users can easily add any attribute to the device configuration during startup configuration in their Host Code by following the guide below.

*The MMBNetworks application framework will take care of the attribute accessors.

Adding 'Un-Supported' Attributes

Clear Endpoints

When adding a new cluster the the device configuration, the Endpoint configuration must be first cleared and the following command sent:

1. Put the device into Startup Config mode by sending the Host Startup Ready Command - ( PH:0x55, SH:0x20 ).
2. Send the Clear Endpoint Config Command - (PH: 0x03, SH: 0x30) to clear the previous endpoint configuration.

Configure Endpoints with Cluster

Once the endpoint configuration has been cleared, add new endpoints and clusters the the device configuration by sending the Add Endpoint Command(PH:0x03, SH:0x10).

Add Unsupported Attributes to Cluster

For the unsupported attributes:

1. Add attribute to the cluster by sending the Add Attributes to Cluster Command - ( PH:0x03, SH:0x20 ). Be sure to follow the Attribute Definition Records Table.
2. Set attribute values (if not using default value) by sending the Attribute Write Command - ( PH:0x03, SH:0x25 ).

Complete Startup Config

Once all of the above steps are complete, send the Startup Sync Complete Command - ( PH:0x55, SH:0x22 ).