Sort function would be nice

Am I the only one who misses a (manual) sort function?

I know there are a few workarounds like renaming the image file names, but changing a file name also requires to change the captions.txt file afterwards. It can get a lot of work quickly.

A manual sort function would be nice, maybe using some special characters in the file name to keep compatibility?

{{01}}file.jpg|Caption|Description
{{02}}file.jpg|Caption|Description

Or something along those lines??

Or simply showing the images in the order of the lines inside the captions.txt file?
I realize that only would enable sorting for the people who actually use a captions.txt file. But I have no better idea at this moment, except creating another file (sort.txt) that would again duplicate things a little bit.

Other than that, I love your script