How to show up output formats on Omeka 2.3


for some reasons I have to use Omeka 2.3 instead of the latest version.
I realized that output formats does not show up at the item level, as in 2.4 version, but only on collection level. I’m working with Thanks Roy theme.
Does anyone know the right setting to show them up ?

I’ve added a small change to visualize the output formats for the specific item on Thanks Roy theme.