Move books to Sd-Card feature in Bloom Reader

With many phones in areas where we work, having only 2Gb’s of ROM, the existing SD-card solution is perfect and needed!
But when people get books from our website or bloomlibrary, they will, by default, be put in the internal memory of the phone, and quickly fill up the phone.

We would like to request a feature that allows the Bloom Reader user to move a book, or a whole book shelve to the Sd-card.