additional question type in Limesurvey

There is a dual array question-type in the latest version of Limesurvey, which features two arrays of radio buttons. I need a dual array question in which the second array has a checkbox rather than radio buttons. ## Deliverables Attached is an image of the current limesurvey dual array question, with two sets of radio buttons, and a mock-up image of the dual array I am looking for, with a check box as the second array. I have no idea how much work would be required so initially I would appreciate an estimate from people familiar with the current Limesurvey environment.