Check out
http://forums.x10.com/index.php?board=103.0You'll find a bunch of good stuff in there; including some with screenshots.
Yes, building a macro is easy.
Start AHP
Click the plus sign next to Macros in the left window pane
In the right pane:
Name your macro.
If it's just used for a timer, make the HC/UC combo something that's not in your landscape, e.g., H5
You don't really care about the On/Off setting next to the Trigger field (unless your gonna trip it using a sensor also)
Find your switch, lamp module, appliance module over in the right side (may have to pulldown to select a room)
Drag that object into the main macro window and set it's mode (On / Off)
Close the macro (click on the room; left pane)
Click the bottom right clock icon on the new macro (timer)
Click New
Enter time, choose weekday, weekends, etc.
Save (bottom rite)
Download to your CM15a
watch the magic happen.
You can add multiple times and even conditions to this macro.
Now, you just built the 'On' macro. You need to build another macro to turn the device off...and 'Add' a timer
to run that at the appropriate time.
play around, enjoy, continue to post your questions.
Advice: If you're gonna have a bunch of On/Off macros for timed events, get out a piece of 8.5" X 11" (landscape)
and create yourself a timing diagram. Time on the horizontal axis and 'On' / 'Off' on the vertical. Draw a bar-graph type
line for each macro to indicate when the device is On and when Off. This way, when the ghosts, gremlins, and
poltergeists appear, you can be sure you don't have one timed macro event stepping on another. It's a nice visual
aid. I've got so many line graphs and colors on a single sheet of paper, it's looks like a darned rainbow. But it's saved
me from going nutz with all the timed events I've deployed.
good luck,
'the verbose one'