Bidirectional Fader

Yes, I am using a custom module. I don't fully understand how to use it, and have been trying to apply it to Tab switching. You see my discussion about it here:

Here is the custom module I'm currently using:

module.exports = {

    oscInFilter:function(data)
	{
        var {address, args, host, port} = data

        if (address !== '/control') return
		if (args[1].value < 117) return
		if (args[1].value == 127) 
			{
			send('midi', 'OSCtoCUBASE', '/control', 1,126,1)
			return
			}	
	return {address, args, host, port}
	},
}