[Pharo-dev] How to get rid of GT-Playground

instances ? If you open a fresh image and change the setting to use the old workspace open a workspace and execute: GTPlayground allInstances size -> 1 There is already one instance. I tried to get rid of this instance but I couldn't find a way. I think this instance is responsible for issue 14928 <https://pharo.fogbugz.com/default.asp?14928>: SystemNavigation default obsoleteClasses -> an Array(AnObsoleteGLMPageScroller AnObsoleteGLMPagerScrollMorph) And this in turn, is repsonsible for undeleteable references to AnObsoleteKMUntypeableSingleKeyCombination. I need this for issue 14936 <https://pharo.fogbugz.com/default.asp?14936> any idea? nicolai