With BeOS 5.01, the Tracker gains the ability to get all Tracker windows out of the way simultaneously. Just hold down your Option key (right Ctrl or left Win on most keyboards) while double-clicking the title tab of a Tracker window. Great way to clean up your mess quickly.
You can also close all Tracker windows at once with Option-Command-W (Alt+Win+W). A future version of Tracker should also support this via the close button.
Note: These feature come to you thanks to Steve Klingsporn’s (steve@buzzlabs.com) contributions to the OpenTracker project; 5.01 is the first BeOS release to include code changes from the open source community.