Service mode used as follow spot mode

Holding the jog wheel and Escape button pressed in while powering the fixture ON puts the fixture into service mode, in which Pan and Tilt are disabled and a SERV warning appears in the display.

With the Pan and Tilt motors now deactivated all movement can now be done manually while all the effect are still controlled via DMX.

Cycling the power is needed to enable Pan and Tilt and take it back to normal operations, a DMX reset is not enough.