"So, here is the main page:" thanks for links really impressive what you trying to do with GT tools, but I still cannot find documentation about the API of extending GT-Inspector
following your link here http://www.humane-assessment.com/blog/managing-gtinspector-extensions/ GTInspector class>>gtInspectorExtensionsIn: composite <gtInspectorPresentationOrder: 40> composite list title: 'Extensions'; display: [ (Object withAllSubclasses flatCollect: [ :each | (Pragma allNamed: #gtInspectorPresentationOrder: in: each) collect: [:p | p method asRingDefinition] ]) sorted ]; format: #gtDisplayString; filterOn: [ :text :each | each gtDisplayString includesSubstring: text caseSensitive: false ] for example I have tried this and works fine and well, but since does not tell me anything about the API , for example what composite is, or where title and display come to play and generally how I can use this customisability for my classes. Your other dont help on this issue either. I did not know that you can use GTInspector as a browser replacement. I am impressed :)
