No, you must use a separate registration form for each test date. Remember that registration by mail is available only for test takers who do not have access to an electronic form of payment (credit/debit card).
Requests to change your test, test date, test center or test session can be done online or by phone. Change requests for paper-based tests can also be done by completing and submitting a Change Request form. The Change Request form can be downloaded from this website. Fees, payment policies and completion and submission instructions are on the form.
You cannot make a request to change from a paper-based test to a computer-administered test and vice versa. To do this, you must cancel the test for which you are registered and then register for the new test.
A test date can only be changed to a date within the current testing year. If you are affiliated with an Educator Preparation Program, you must be preapproved for the new test you are planning to take.