Add twin rudders to ORC Offset file

Twin rudders are added in the appendages tab, in the ORC manager app as opposed to a drawing in rhino3D, but there very little documentation any ideas will be greatly appreciated.

From the Offset XML file:

<appendage id="1" parentid="0" apptype="2"> (2 is the code for rudders)
<clientanchor x="0" y="0" z="0"/>
<parentanchor x="0" y="0" z="0"/>
<rotation x="0" y="0" z="0"/>
<poweraxis x="0" y="0" z="0"/>
<fraction value="1"/>
<swingangle value="0"/>
<strip thickness="0" code="0">
<lead x="0" y="0" z="0"/>
<chord x="0" y="0" z="0"/>
</strip>
</appendage>

?Which is to be populated with this data, from the ORC VPP documentation, which is pre 2021!
ryoff = 1.0m
rxoff = 7.9m
rspan = 1.1m
rchordroot = 0.22m
rchordtip = 0.143m
r_thicknessroot = 0.0246m
r_thicknesstip = 0.01716m
angle = 30deg (lateral inclination)
? Angle yoff = (the stagger from CL of the root. if = 0 means single rudder)