So this is the code what I put at the StartupParams.otd: if (@this.Parent.NodeType != HierarchyNodeType.CommandHandler ) { sErrorText = ": illegal parent NoteType; AddOn must be on a parent CommandHandler-NodeType" ; } else {...} If I now starting the "Export" from OES/CPS the program must run through the code, or not? I always thought, the less code in the StartupParams.otd, the faster the export. Or dose have this no influence at the export time? From my point of view, I don't need it, because I know which AddOn's come on which level. Nevertheless, I see in the field that it is often happens. But maybe for the NxEventListAddon could it also help, because this makes also no sense to put it on CommandHandler-Level! Maybe I thought the solution was too simple, because the behavior for addons that are set on units already exists. See picture!
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