I believe that changing the namespace of an individual object through the Properties
tab will change the namespace for that code, but whenever OpenAccess regenerates the code, it will overwrite that change and use the namespace that is defined for the model.
You can change the namespace of the your model by right-clicking on the designer surface and selecting Show Model Settings
.
This will open a window where you can specify a custom namespace; the screen looks like this:
Note: Keep in mind that this will change the namespace for all the domain classes & domain methods that are in the model.