Multiple Autosaves
In Skyrim (and Oblivion, Fallout 3/NV), there are, IIRC, three different autosaves: On rest, on fast travel, on cell load. I'm suggesting that, if possible, OpenMW also create an autosave on cell load, so the game saves when entering and leaving interior cells.
(RM-2529 from redmine: created on 2015-05-09 by Alex Aim, )