I am new to Sencha and even JS development (trying to move from Flex).

I am trying to complete the following tutorial:


I seem to be lost at "Project export and event handler" stage:
1. There is no "Project Export" option that I could find in the designer.
2. I can't edit the code from the designer - it is disabled and marked "read-only" for some reason....

Is there really no way (even in Ext JS desginer 1.x) to add event handling within the designer? Why would I use an external text editor when that's an essential thing any IDE is supposed to provide?