im trying to make a simple library that only contains two lamps and two buttons and is only for testing. when i add the library to a new proyect it get added to "PlaceholderTemplate = TestLib" but when a tried to add it to my main proyect i got an error because there is another library using "PlaceholderTemplate". in the test library, i tried changing the value of the key "placeholder" in the tab "properties" in Proyect Informations but it doesn't do anything.