The schedules for notification devices aren't exposed in BulkEdit or the BulkImport tool at this point - however you can adjust them with an SQL query if you want to do something simple. For instance if you want to set all Phone1 devices to be 24x7 for all subscribers it'd be pretty easy. If you want to do something more complex it's more involved.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.