If you’re using a 2-button mouse, you can take advantage of the extra button in Logic. It can be set to open the Toolbox by selecting appropriately from the Right Mouse Button options in the Editing window of the Global Preferences. You can also assign the right mouse button to a specific tool by clicking with it on the required tool. Each tool can be saved in a different Screenset. Logic users will be happy to know that Apple’s new Mighty Mouse behaves like a traditional multi-button mouse.
If your mouse also has a scroll wheel, it can be used for scrolling up and down in a window. Holding down the Alt key while you do this zooms the tracks vertically, while holding down the Apple key scrolls along the Song’s timeline. Holding down the Shift and Alt keys while scrolling zooms the window horizontally.