AutoNav Graphical Navigation and Gallery Plugin – limit images to one

Is there a way to limit the number of images per post to one only?
Also, how do I get the titles to appear?
How do I make all the images the same size?

My shortcode might not be correct:

[autonav display=”posts, table, thumb” postid=”category:4″ count=40]

https://www.freeprintablecalendars4u.com/printable-calendars/monthly-calendar/

Any help with be much appreciated! BTW this plugin is simply excellent!