grouping dropdown values

Hi,

I would like to achieve the following:

I have a dropdown list with a lot of values. Each of those values belong to one of a few groups. Most of the form logic should relate to the groups and not to the value itself.

Is it possible to add a "hidden" field in a dropbox and to refer to it afterwards in the logic?

Thanks

Ariel

Unfortunately it is not possible to add filed within a drop-down list, you might want to consider having a drop-down having the major groups and other drop-down holding items specific to each of the groups which you can the hide or show based on the selected group.