PI closed loop property is not present when session starts

Need to print the motor (or something) to initialise the closed loop property.

We would like to have this as settable (on/off) rather than editing the yaml restarting the session.

NSCOPE [1]: pz.closed_loop              
!!! === AttributeError: 'Axis' object has no attribute 'closed_loop' === !!! ( for more details type cmd 'last_error' )
NSCOPE [2]: pz      
   Out [2]: AXIS:
                 name (R): pz
                 unit (R): None
                 offset (R): 0.00000
                 backlash (R): 0.00000
                 sign (R): 1
                 steps_per_unit (R): 1.00
                 tolerance (R) (to check pos. before a move): 0.0001
                 limits (RW):    Low: 0.00000 High: 110.00000    (config Low: -inf High: inf)
                 dial (RW): 97.09679
                 position (RW): 97.09679
                 state (R): READY (Axis is READY)
                 acceleration (RW):    1.00000  (config: 10000.00000)
                 acctime (RW):       100.00000  (config:    0.01000)
                 velocity (RW):      100.00000  (config:  100.00000)
            Physik Instrumente, E-712, 112069826, 11.05.08.03
                 MAC address : 0-30-d6-c-6a-bd 
                 IP  address : 169.254.1.12:50000 
                 IP start    : STATIC
            <bliss.controllers.motors.pi_e712.PI_E712 object at 0x7feaff94cd90>
            ENCODER:
                 None
            

NSCOPE [3]: pz.closed_loop              
   Out [3]: True