Aloha! We're looking to use Membership Pro, JoomDonations, Eshop and Events booking. Do we have to purchase a separate Payment Extension (probably Elevon) for each?
Yes. Each payment plugin only works for the extension it is developed for, so Yes, you will need to purchase payment plugin for each extension. However, when you decide to make purchase, please submit a support ticket so that we can offer you coupon for discount of these payment plugins purchase