If a block provides an opportunity to insert several elements, you can order their showing up on a page. You need to “take” a needed field and drag it to the selected place - thus you can customize an order of elements depiction on a page.
If a user puts there an email which was already used when an account registration, the following message pops up: the email already exists, it is needed to enter a password. If a password is lost, it is possible to get a link for a new password setting to the same email.
How to organize additional sale in GetCourse form?
In setting of block with form with an offer add “Offer an addition” option, fill in “Title” and “Text” fields with information about an offer, choose it in a list or create a new one.