Hi Paul ,
I assume the switches you have are the new style 3 position “cam” switches
with 3 pairs of switches that are alternatley close in the forward or reverse position
the two common terminals in each section may all ready be linked internally
to make a toggle / change over switch
the diagrams are for 3 phase and single phase motors
ps if they are the older drum type of switch just look at my other cam switch photos
John