[galaxy-dev] grouping/separating parameters on the page

Hello, Is there a way to do one or both of the following: 1) Group a set of related parameters together on a tool page 2) Put a separator in between related groups. I have a tool with lots of parameters. It's ok to have them all on one page but I'd like to have some space or a line between the related groups (and maybe even a header for the group) so that users know which parameters are related. Thanks, Dan