The 2.1.4 version of xMaster for Mac was provided as a free download on our website. The software is included in Lifestyle Tools. The actual developer of this free Mac application is Art Coughlin.
From the developer:
xMaster is a schedule manager for the X-10 model CP290 computer interface. Use xMaster to create and edit schedules of events that can be stored in the CP290's memory, or saved to disk. Retrieve events from the CP290. Have different schedules automatically loaded to the CP290 on specific dates.
You may want to check out more Mac applications, such as BookTracker, Reunion or HanDBase Desktop, which might be similar to xMaster.