Guide to Ecco Extension?

I'd like to echo a note I saw a few days ago, inquiring whether there exists any systematic summary of the changes / new features in Ecco Extension.
 

 I installed Extension while switching to Windows 10.  It runs just fine, but I don't know how to make use of the enhancements it offers, and on one occasion it delivered a rather unpleasant surprise. 

  
 I was working in an Ecco file, minding my own business, when suddenly the font size changed, without my having consciously done anything to make it do so.  When I went to adjust this with the Character command, in the dialog box I saw two unfamiliar settings:  Zoom and Outline, which did not seem to be adjustable by me. As I continued to fiddle with it, the Zoom setting changed, again without my having done anything to cause that, as far as I could tell. 

 

 I would like to avoid having things go out of control again, and learn to use the enhancements.  As a side note, I don't suppose these include what I would regard as an absolute killer enhancement: the capability to create macro commands. 

 

 Thanks,
 

 Frank Nettleton