"Random file" suggestion

[flauchhaus]

Thank you for XnView MP, it is excellent and I love that it is multi platform!

I am missing two features regarding the "Random file" feature:
- "Previous random file", basically where it would go back to the previous random files.
- "Random file" is only available in Viewer mode, it would be great if also would be possible in Browser mode to select a random file.

I am often using the random file feature to browse/sort/tag items from folders that contain a large amount of pictures but sometimes miss those features coming from other image viewers (Xee).

Thanks!