How is the Mac version different

[dkulp]

But Dan posted "Mac AppNapp stuff" should be disable....I don't understand

In Mountain Lion (I think), Apple introduced AppNap which will automatically suspends applications that aren't being actively used to save battery/power.   This affected xLights.  If you tried to use the xLights scheduler to run a show or use xLights to Output to lights over night to "burn in" lights, app nap would kick in and suspend xLights and the output would stop.   I had to add some Mac specific code into the Enable outputs stuff in xLights to turn off App Nap for xLights when outputs are enabled.   

[scuba]

Thanks Dan for the Info...I'm using a MAC PRO (2008) with 10.11X..the only issue is I don't have a Fn key!

Thanks for keeping up with the Mac version ...it's been a great help!
John