The Rational support team submitted a RFE (Request For Enhancement) 29017 for me to address this very issue:
Please vote for the request if you would like to see this enhancement.
(Sorry if the link doesn't work. You may have to copy and paste it into your browser.)
BTW, if you are having trouble with variables or parameters, you can define them with continuation and they are supposed to space properly. I thought it was kind of ugly and didn't try that.