Several ways to see the model schema.
1.One way from the Host Ency is to go to:
From the main menu
Select 1 - Host Encyclopedia functions
Then 3 - Model management
And then 5 - Display model statistics and select a model for display.
The screen will display several things including the model schema.
2.Additionally Some SQL to list all models in the last two prior schemas.
SELECT MODEL_NAME, MODEL_RELEASE
WHERE MODEL_RELEASE = '9.1.A5'
OR MODEL_RELEASE = '9.0.A2' ;