This isn't possible. I dug through the source code and you **can** force a line break (CTRL+V,CTRL+M), but this actually messes up the display. The event stays on the same line but the line break starts over at the beginning and overwrites the characters.
Given the following two examples:
`00000325 Popeye statue unveiled, Crystal City TX Spinach Festival, 1937`
outputs
`Wed 26 Mar 2014 - Tomorrow * History: Popeye statue unveiled, Crystal City TX Spinach Festival, 1937 `
while
`00000326 Popeye statue unveiled, Crystal City ^MTX Spinach Festival, 1937`
outputs
`Wed 26 Mar 2014 - Tomorrow TX Spinach Festival, 1937unveiled, Crystal City `