Multiple Columns or Horizontal Check Box Lists

I will add it to a wanted features list bout cannot promise if or when.

You can set them horizontal:
By default radio and checkboxes are displayed vertical. Here is how to make them display horizontal: add the tag {inline} before the label, like this:
{inline}Pizza Toppings:,olives;mushrooms;cheese;ham;tomatoes.

In version 4.0 there will be a check box for this and you do not have to use the inline code.
Also the options in version 4.0 are set in a textarea, one per line like this:
olives
mushrooms
cheese
ham
tomatoes