Hi all, I need a bit of advice as I'm getting a bit stuck

I've just started CT with Pinto again, using Ben Harts methods (the click is a bridging stimulus, the hand moving to the food pouch being the terminal stimulus).
We've just done two sessions so far, using my nice new targetting stick:

So far we can touch the target when it is straight in front, above head height, at ground level, and at about a 45* angle at chest height, with me standing on either side of Pinto.
Pinto has caught on well to the difference between the bridge and the terminus, and upon hearing the click will watch for my hand to go to the pouch.
Now, I have no idea where to go from here. I have to admit to not being the most imaginative people when it comes to training

so any ideas here would be great.
We are pretty limited at the moment, due to unsoundness, but I thought we could try the "stand still on a mat" as it is something we could do in the manege, where we have more of an opportunity for Pinto to make his own decisions (I'd be sectioning off a small part of the manege, so we have room to move about, but not enough room to, er, run around in.)
I guess if I want to teach "stand still on a mat" then I would need a verbal cue too? Do I need to introduce that at the beginning too, or wait until Pinto was standing fairly consistently on the mat to begin with?
What kind of mat do you recommend? Does this sound like an OK shaping plan?
Goal: I would like Pinto to stand still, untied, with both front feet on a mat while I move about him, including within touching distance, and at distance including out of sight
Steps:
1) target mat
2) target mat placed on ground
3) shift in body weight towards mat
4) one foot on mat
5) two feet on mat
6) introduce verbal cue "mat"
7) two feet on mat while I stand at his neck (left and right side)
8) two feet on mat while I stand at his shoulder (left and right side)
Now it is here where i get confused as to when to include longevity of standing on the lat opposed to me moving further away from his line of sight (around him) and to increase the distance I am from him.
Any help or advice would be greatly appreciated on next steps/ is my training plan too much/too little/too advanced/too confusing etc
