and another version (tagged as experimental):
For simplicity, a series of corrected history saving, multi-tasking, should work, although if the check book open at the same time a lot of books that may not be able to save the last position for some books.
Observe how often will lose the last page.
CoolReader for PocketBook, v0.0.6-5 (CREngine 3.0.54-38)
For PB301 +, PB360 PB302 and
For PB360 Plus, PB611, PB60x and PB90x Pro Series
Greek translations were added, therefore it is necessary to update the contents of the folder / system/share/cr3/hyph, if they are needed.