I’ve gotten this question several times, but it came up again recently in an online course I’m teaching. If you have multiple dogs, and especially when you are just getting started with training, it can be tough to work with one at a time. Here’s a handout with some ideas to help you through those beginning training sessions.
You could continue to increase the duration of “waiting her turn” until your dog can wait for 5-10 minutes between turns. Alternatively, you could teach a go-to-mat or similar stationing behavior for the waiting dog.
It’s important to give each dog a turn – even if the training is a little different for each of them. Getting an individual turn for training will become part of the reinforcer for waiting.
For further resource, check out these two blogs from Eileen Anderson:
Multiple Dogs: https://eileenanddogs.com/blog/category/multiple-dogs/
Training Individual Releases: https://eileenanddogs.com/blog/2015/03/02/dog-training-individual-releases/