set michine Homed.

I am working on my CNC from the nice warm space in my office. 
I am doing some things that require the software to be restarted. 
then i have to home miching to test the changes.
my motors are powered off.  but to test i need to go out to the shop, turn on the motors, home the machine, turn off the motors, and test.
I was looking for a way to just tell the machine it is homed form the halscope.  
Is there a variable I can set to make that happen?  
I do need some exercise but I don't know that I want  to get it that way.  It is all so cold out. 

thanks

Thanks.

how ever that did not do it.
hoe ever reading through that secting i may have solved a different problem i have from time to time.

so that whas nice.