Onyx Boox Poke5P User Manual page 44

V2 Engine supports the original layout of the document,
including font, line spacing, margin, graphic typesetting,
indentation, etc. When being switched to V2 Engine, the
document will be closed automatically. Next time when you
open the document again, V2 Engine will be used. If you
want to switch to NeoReader, you can disable V2 Engine
and reopen the document.
Loading
Progress
The document needs to be
paginated again after switched
Finished
to V2 engine or font and spacing
adjusted. You can check the
pagination progress in the reading Menu/Progress. After
the progress bar is loaded, it means the pagination is
completed. You can drag the progress bar or jump to
another page after the pagination is completed.