There is certainly nothing preventing you from including these files and using it via your own overrides. But you will not get visual support for these components until we add some additional support.
I don't mind doing some overrides until support is available. I'm just getting started with Sencha, so can you point me in the right direction to how I would do this?
Here is where I am. Designer creates a Viewport class that extends MyViewport which has a border layout where I want to place Bryntum's Ext Scheduler in the center region. I defined a class that extends the Scheduler class that has an xtype of "scheduler". What class do I override and how do I hook into it?