Always show Image Caption Text

Hi there,

We are using WP Show Post Pro for outputting posts on the front page and in the right sidebar.
Similar to the Demo Dispatch: https://gpsites.co/dispatch/

Our requirement is basically that we need to show the text under each featured image. In the single posts we already have set-up with the snippet:
https://gist.github.com/diggeddy/5f7c3a4584a8beb51febc9c4f33d6c5c

Required still:
- Front page with (WP Show Posts Pro)
- Sidebar (WP Show Posts Pro)
- Category and tag archive

And also, when a post is shared in social Media ...

It would be great to output all captions in the upper right corner, like for example:
https://imgur.com/8z8R8NV

Any chance to get help?

Best regards.