How to determine or change the Stock exchange

Alpaca Trading Tutorials
1

I want to use alpaca over a local stock exchange.
How can I define or change the default stock exchange?

2

There is a polygon api call that allows you to 'list" the exchanges but IDK about changing them. Maybe if you describe more of the desired outcome it will help.

FYI:

also the api.list_assets() lists the exchange a symbol/ticker is associated with: