As there are several options, we drag a 'Select Multiple' form element to the green Form Section and the Element Details section of the form builder updates. In a similar fashion to the Select One form element we will define a number of options that a user may choose, each of which need an Option Name and Option Value entered.
For the Select Multiple Label we enter 'Which social networking sites do you use?' and we will store this data with the ID 'socialnetworks'.
By using the 'Add option' button we can add our list of websites and specify each option name and value as in our Select One example. After doing so we select that this is a 'Required' field and also that we want to chart the results as a pie chart. Clicking done updates the form as in the following figure.