*Solved*  Hi I'm trying to map the FD switches to the Goflight MCP pro I can't use the custom command toggle as it is a physical on/off switch as in the real aircraft sent it: ixeg/733/MCP/mcp_plt_fd_act  it looks like a 0 will turn the switch off and a 1 will turn the switch on. It works for a few cycles then xplane crashes. Any ideas? edit: Tested again, I think it's something to do with Gizmo  a console window popup has the following: 690.634 Callback_D