Sorry that refreshes an old topic, but I have the same problem. Read but do not understand. I would like to make a component that inherits from TKOLPanel, this component will include other parts of the KOL components (like buttons, etc), so I wants to make a component some like "package". Is it really feasible? When I add a module MCKCTRLS then get a compiler error "couldn't find CodeToolmanager module uses by mirror". When I add CodeToolmanager then get another error "couldn't find Unix module uses by CodeToolmanager". And so on. What is this CodeToolManager? I really need this?