"Hop on; Hop Off" FM6

I had using FM4 & 5 for years. However, since I have not made any slideshows in awhile, I never subscribed to FM6. (I am assuming that FM6 is still available on a monthly subscription basis). I would like to make a slideshow on FM6 later this summer. Is it possible to subscribe for one month, create my slideshow & then cancel my subscription? Thank you.