Hi.  I'm new to Zoho but learning things quickly.  I'm having trouble a multi-select field.  I use the multi-select to allow my users to select what magazines a contact should receive.  If the multi-select field has a value in it, I need to make sure that the mailing address fields have been completed.  I can't seem to creative a field validation rule or a layout rule based on a customer-defined field.  I even attempted to write a custom function but the "Cancel Submit" does not work with the CRM? How do I get around this?