Multi-line option for "credits"

In launching our first public Omeka exhibit, one thing that came up was the need to have multiple lines in the exhibit "Credits" field; one single wrapped line of text wasn't enough for our development dept. Could you bump the text entry field to a two-line textarea, and handle the "Credits" text the same as the "Description" text (i.e. using nl2p, nl2br, or whatever's being done)...thanks!