[Plugin: NextGEN Custom Fields] Increasing field display size in control panel?

I’m using the NextGen Gallery Custom Fields plugin to easily display info about a given image next to the thumbnail – i.e., date of origin, location, description, etc, all on different lines. Works like a charm.

However, in my NextGen Gallery control panel, the text entry areas for each custom field are only about an inch or so wide (so they can all fit on the screen horizontally). This makes it difficult to read & edit some of the text while I’m inputting it. Is there a way to increase their size, say extend them down a few lines with the text wrapping accordingly?

I’ve looked in the PHP file but have so far been unable to find an obvious solution. Thanks…