There are two recipes in the book for our 20 year old Breville bread machine which include oats:

Honey oats and barley bread, or sunflower and oatmeal bread.

The ingredients for the first recipe for a 1 kg (2 lb) loaf are:

Honey oats and barley bread

Water 355ml, oil 2 tablespoons, salt 2 teaspoons, honey 2 tablespoons, bread flour 2 .5 cups, wholemeal plain flour 1.5 cups, milk powder 2 tablespoons, bread improver 1 teaspoon, gluten flour 2 tablespoons, rolled oats 2 tablespoons, oat bran 1.5 tablespoons, barley bran 1.5 tablespoons, yeast 1.5 teaspoons.

Sunflower and oatmeal bread

Water 355ml, oil 2 tablespoons, salt 2 teaspoons, sugar 2 teaspoons, honey 2 tablespoons, bread flour 2 .5 cups, wholemeal plain flour 1.5 cups, milk powder 2 tablespoons, bread improver 1 teaspoon, gluten flour 2 tablespoons, oatmeal 1/2 cup, cracked sunflower seeds 1/3 cup, yeast 1.5 teaspoons.

I just found this page which defines the different forms of oats: Ode to Oatmeal : Your Guide to the Beloved Breakfast Staple

It looks like the oatmeal referred to in the second recipe is ground oats to make a coarse flour, which I'd do in a blender or food processor or coffee grinder.

I don't follow the recipes exactly so I've never added gluten flour, but maybe that's a trick for making bread which includes plain wholewheat flour and other added fibre foods. I don't know. The gluten flour is not mentioned in the other recipes in the book which just used bread flour.