I would break this down, and teach it in much smaller segments.
First order would be simply shaping the dog to go to his mat, completely on his own accord ... without any prompting, or body language from you. Once you have that behaviour good and solid, you can easily add a mock door knock as the cue, eventually transferring to the real thing.
That way, in the finished product, if you're sitting watching TV and someone calls ... BOOM ... your dog is instantly where you want him to be before you even stand up.
You can teach the other parts of the sequence seperately, and add them all together when ready.
First order would be simply shaping the dog to go to his mat, completely on his own accord ... without any prompting, or body language from you. Once you have that behaviour good and solid, you can easily add a mock door knock as the cue, eventually transferring to the real thing.
That way, in the finished product, if you're sitting watching TV and someone calls ... BOOM ... your dog is instantly where you want him to be before you even stand up.
You can teach the other parts of the sequence seperately, and add them all together when ready.