Either the terminology has changed in the last 14 years or I'm using a different OS (Win10) which has different terminology, but I have no 'Options', and in my Settings>Configure OpenLP, there does not appear to be a 'Slide Settings' tab. In the Service tab, there appears to be a section on Service Item Wrapping, but i think that may be more about looping.
I'm looking at version 3.1.1