Already answered in E-mail, so just copy-paste here:
Unfortunately, thumbnails sort order in filmstrip is determined by Preferences - File Handling - File sort order setting.
There is no way to reorder files manually because folder contents will re-read on folder change (file added or removed) to maintain actual thumbnail list.
In FRV 1.2 we've added file sort order 'by EXIF shot date', so you may order files from different cameras in 'natural' ordering (earlier to later).
Already answered in E-mail,
Already answered in E-mail, so just copy-paste here:
Unfortunately, thumbnails sort order in filmstrip is determined by Preferences - File Handling - File sort order setting.
There is no way to reorder files manually because folder contents will re-read on folder change (file added or removed) to maintain actual thumbnail list.
In FRV 1.2 we've added file sort order 'by EXIF shot date', so you may order files from different cameras in 'natural' ordering (earlier to later).
FRV 1.2 is now in Release Candidate state, you can try it and determine if this ordering suits your needs: http://www.fastrawviewer.com/testing/fastrawviewer-1-2
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Alex Tutubalin/FastRawViewer team