XTension provides “Units” that can correspond to any real supported device. Units can also be a “pseudo” meaning that is has no connection to a real device but is a a place where you store other information. For example: “current temperature” might be a real Oregon Scientific temperature sensor, but “high temperature” might be a pseudo unit that you set the value of based on the incoming data from the temperature sensor.
XTension provides a scripting interface for you to attach your own decisions to. The scripting language is AppleScript and can control all your units in XTension as well as asking for data from and controlling other applications on your Mac. Do not fear the applescript! It can be very simple to start with, anybody can learn it and much help is available here on the wiki, the XTension mailing list members are eager to help you sort out more complicated ideas and lastly Apple maintains their own applescript specific scripting discussions and mailing lists for even more esoteric questions.
Fully featured “Scheduled Events” provide time based events that can turn on or off lights or run other scripts.
An index of the articles in this section in order:
On startup, if XTension cannot find a file named XTension Database, it will create a new empty one. So just rename the Demo Database, or move it out of the XTension folder.