MyHarmony.com

[Kaz4Caz]

I have a Harmony One and I Want to turn OFF the TV with an Activity but I also need it to press stop on my media centre if needed.

I am using myharmony as instructed in the manual and the only downside to using that over the software is unable to rename devices and reorder the activities.

[rhachey]

You must have the Harmony One + if you were directed to MyHarmony.com.  You can use the stand alone 7.7 software, which gives you a lot more control of your setup.  It can be downloaded here.  With the software you can also add additional commands to the start and ending of your activity, adjust repeats, adjust delays, and others none of which can be done by using MyHarmony.com.