Preview action is not discoverable
This is a feature request.
I'd like to be able to open a sidebar on the right to see the preview of the selected file (image or any textual document). Here's an example from Windows:
I know that I can see a thumbnail preview in the main area, but this is not enough for my use case because often a) it's not readable, b) I need to quickly check other pages than the first.
Edited by António Fernandes