Can I manually add subscriptions to a model?

To manually manage subscriptions of a device, open the device page from the controls panel. Select the settings button of the device you would like to update. From here you first need to select the element the desired model is contained in (typically element 1). After the element is selected, all the models contained in that element will be displayed; select the desired model. In the model configuration page you will see the subscription section. Here you can delete and add subscriptions.