
All Model Options are stored in the DesignBuilder dsb file and so any changes you make to the model configuration will not affect other models.
You can open the Model Options dialog by:
Pressing F11.
Clicking on the spanner icon on the toolbar.
From the Edit menu.
All Model Options are stored in a single dialog but the options you can access depend on where you are in the model hierarchy.
Some model options are stored at the site level:
All options on the Display tab
Most are stored at the building level:
and some are stored at block level:
All options on the Block tab.
So if you open the Model Options dialog when you are at building level you will not be able to access the Block Model Options. Likewise if you are at site level you will only be able to access the Display tab.