To add either weekly, fortnightly, and/or monthly options to your form,
1. Click on the donation form which is greyed out in the editor until you see
2. You should then see the below appear
3. This allows you to tick which options you wish. If you do not tick any boxes, the default will just be once off.
4. You are also able to select which frequency you want as the default option (i.e. highlighted)