Continious move on rotary axis

I have rotaty axis A. Now I build my programs to move from 0 degree to 360 and back with ZigZag. But 0 and 360 is the same place. How to configure linuxcnc to move from 0 degree to 360 and to nullify it to 0?

I've found unswer:
I need to add to .ini file
" [AXIS_A]
WRAPPED_ROTARY=1 "

But if I will run stepconfig withard in the future , it will overwrite my manual configurations and I will have big heap of fuelwood.
How to be?

You probably need to accept that Stepconf has done its job and that future changes will be made in the HAL and INI files.
(This is actually normally easier, you don't need to go through the whole of stepconf and try to work out what combination of inputs will produce the required output)