Adding your name to another MP’s Early Day Motion (EDM) is a way of showing your support for it. Your colleagues might ask you to add your name to their EDM.
You can also add the names of other MPs to an EDM you have started without their signatures, while the House is meeting but you must have their authority to do so. To do this, you contact the Table Office by email - using your parliamentary email account - or by phone (x3302). Alternatively you can visit the Table Office with a list of Members to add to an EDM, with your signature on.