<Bindings> <Binding name="SOMETHING" header="XXX"> MyAddon.MyFunction(); </Binding> </Bindings>
SetOverrideBindingClick(Your_button, true, "B", "Your_button_name", "LeftButton")
ClearOverrideBindings(Your_button)
<Bindings> <Binding name="CLICK SECUREACTIONBUTTON_NAME:LeftButton" header="XXX"> -- Empty </Binding></Bindings>
_G["BINDING_NAME_CLICK SECUREACTIONBUTTON_NAME:LeftButton"] = "SOMETHING";