Not exactly sure how to do to it because I never used it.From what I see in��SmaCCParserDebugger>>handlesContext: if you have in the stack a context created by ��SmaCCParser>>parse you should have a 'SmaCCParser' button at the top right of the window. But maybe John can provide you with more details. Cheers,AndreiOn Fri, Apr 14, 2017 at 2:45 PM, Stephane Ducasse <stepharo.self@gmail.com> wrote:Andrei?Help?On Fri, Apr 7, 2017 at 3:14 PM, Stephane Ducasse <stepharo.self@gmail.com> wrote:Hi��I found the SmaCCParserDebugger and I found the debug menu in the Smacc tool.��Now I get a GT and byteCode debugger but I do not find a way to make the new debugger actif.Stef