Wall accessories documentation or manual?

[concepsys]

Hello,

Where can I find any documentation regarding programming gdl objects based on the Accessories add-on for Archicad?

[SenecaDesignLLC]

None of these provide the information we are referencing relative to accessories. They are a great start for basic gdl but there is not accessory information 

[yongler]

The accessories of slab are also the same, with only one attachment object attached。