It is not possible at present.
I will not purchase the language learning courses because they are on a subscription basis.
Supermemo encourages you to use the program every day, and I like this idea, but I don't like the idea of needing to pay $5 per month for the rest of my life to keep the questions in.
I recommend having a purchase price, rather than a subscription. Then I would be likely to purchase a phrasebook every time I want to travel to another country.