I'm diving into Sencha Touch B3 and I must say it's quite easy to start an application. Without any difficulties, you can build an app with the NavigationView and NavigationBar components.
But it seems it's harder to customize, when you want to take a slightly different way of using this.
Here is the context: I have an app with 3 views. It has the back button on the left (except for the 1st one), AND an alternative text on the right.
Is it possible to add panels, containers, buttons, and so on, on the right part of the bar? This should be great, because I have some multilingual text stuff to put over there, and I don't want to make an image for each of them and use background-image :S