No settings whatsoever makes this useless unfortunately

This appears to be the only widget to show an end user the last post they viewed. My site is a WIKI type of site and users may get lost so this would be extremely helpful.
It works – BUT:
You cannot adjust the large heading or indentation in the sidebar – I can sort of live with that – BUT –
Worst is you cannot set a post limit. The list of last viewed posts goes on forever. It seems like such an obvious setting to add, it boggles the mind that they left it out. Ruins the widget. Can’t live with this fail.