Yes it's possible but only with the early versions of the Gyrodec like the MK I, II. I have a MK II converted to an SE and it has holes where the motor is for a second arm board. There is a counterweight in the subchassis that is removed.
The original version had a hole in the plinth where the motor would move to.
The later Gyrodecs seem to have abandoned this option. I am not sure when it was discontinued but somwhere along the time line of MKIII or MKIV.
The original version had a hole in the plinth where the motor would move to.
The later Gyrodecs seem to have abandoned this option. I am not sure when it was discontinued but somwhere along the time line of MKIII or MKIV.