Can I use multiple credit/debit cards to collect payment using the Elavon gateway?

Can I use multiple credit/debit cards to collect payment using the Elavon gateway?

Yes, Your customer can pay for a sale transaction using multiple credit or debit cards. For each credit or debit card used, a payment authorisation request will be sent to the Clover Connect Device mapped to your POS register. This is because for Clover each credit or debit card interaction is treated as a separate transaction. Customer will have to individually authorise these. 
Plugins in Tagrain are either Subscription Based or License Based. So the price that you pay for your plugins is based on the number of POS terminals that you have in your setup and the number of licences that you have acquired.
There will be no change in your subscription amount in the current billing cycle if you are only deactivating the Clover Connect Payment Processor plugin AND not updating your Store / POS count. 
Activating or Deactivating the Clover Connect Payment Processor plugin will not affect your subscription amount for your next billing cycle because the plugin is free.