Webform Single Use Options

Sometimes, in webforms, you want a particular option (radios, checkboxes, listboxes, dropdowns) to become unavailable once it has been used in one submission. Examples of these are - seats in a ticket booking form, appointment slots in a scheduling form, etc.

This module adds a checkbox to webform components of type "options", such that when you check that checkbox, this module will remove all options from a webform component that are in use by any existing submission.