The primary way you can control trace is by using the -Xtrace option on the command line or you can use the optional trace properties file if the option set is long or complex.

RIM joins a long line of businesses, including Dell, Samsung and Hewlett-Packard (HP), which have set their sights on winning a chunk of what promises to be a whopping market.

When this option is set, the portion of a long line that extends beyond the current width of the Code Editor window is displayed on the next line.