Yes this would be like having a trunk show and making appointments there now and then over his studio. But, you made it sound like he was a regular employee there day in and day out to peddle his wares. Again, you don't have a jacket style named after you...so you probably do know more about it.
I don't claim to know anything more than what I was told by Thom Browne and the staff at Bergdorf. I didn't say he was a "regular employee" of Bergdorf (like a sales associate), only that he worked there a few days a week in his own section of the store. It was not a periodic trunk show arrangement. After all, he was not the important designer he is now.