How to better control form appearance?

Is there a list of formatting properties for the actual layout of Creator forms?

For instance, in the free-flow scripting there is code for "column" -- but playing with this I can't seem to get the page to render without at least two columns.

I get the sense that there are a set of commands/properties for Deluge scripting which aren't provided in the Scripting Help section -- where can I find full documentation?

Thanks,
Andy