This is a very quick tip that came up in a usability session today. The UML diagram editor in Rational Software Architect has popup bars which can save time creating diagrams compared to using the palette. For example:
One downside is that they can catch you out if you are trying to select part of the diagram and they pop up unexpectedly. It turns out that there's a simple way to disable these popup bars if you don't want to use them. Open Window > Preferences and navigate to the Modeling > UML Diagrams page.
Deselect the Show popup bars option and click OK. I tend to use the Add User Modeling UML context menu anyway, so I won't miss the popup bars at all!