In order to show thumbnails constantly inside Gallery Popup, so they are displayed all the time, please follow the instruction:
- Create or open needed gallery
- Move to the Main Settings Tab
- Scroll down till you see Pop-up Image or Click Lightbox and enable it
- Click Choose theme button
- Select full screen theme №8 in the bottom –
- Click OK and Save changes
So you can create such gallery with thumbnails like this one —
