You cannot have more than one application submitted at one time, but you can have as many applications as you want entered into the system without submitting them. This is useful as one may want to have one login for the EE application, and another for the OID application, and, perhaps other logins for practice. In any event, you will want to continually update the applications so that they have the most recent bank statements and Form 4 (with the total amount of settlement funds converted to Canadian Dollars) uploaded and available for submission whenever your targeted stream opens.