I started today trying to freeshape an automatic down. She thinks it's boring.
Freeshaping IS boring.
Why not capture the downs?
I taught Luna that the cue "table" means jump up on this thing and then do an automatic down. The good thing with such little dogs is that the possibilities of things to jump up on are pretty much endless - boxes, tables, chairs, really everything - so it's easy to find a way to practice.
Stays are not Mia's strong point at all. I've had a really difficult time building any kind of stay with her and especially building a stay and then keeping her interest.
Not sure if this'll help, but you reminded me of a dog I worked with on stays earlier today. I've been working stays (among other things, of course) for weeks and still am not progressing very far..... He totally CAN do the stay, he's just not really interested; not distracted even, just bored. But it's difficult to make a stay exciting, which has been my problem with him.
I've been following the "rule" of training stay: teach duration first, then distance and distraction. But the duration part was the hard part for him. So today I decided to work distance instead. Where previously he could only do a stay if I was standing next to him, and only for a duration of about 15 seconds, by the end of my session today I could walk 10 feet away, and sit in a chair for over 2 minutes without even having to reinforce him.
Point is, you don't always have to play by the rules.
Again, not sure if this helps (and I'm sure you've gotten a lot of other advice on stays since that's not really what this thread's about *sorry for the threadjack!*), but it was on my mind so I thought you MIGHT be interested.