Renaming Documents with Annotations

[lfcc1]

Is your feature request related to a problem? Please describe.
I have several numbered files: file_1.txt, file_2.txt, file_3.txt, etc. Because Inception uses alphabetic sorting, the files are not presented in numeric ascending order. To fix this, I would like to rename the files to: file_001.txt, file_002.txt, file_003.txt, and so on. This should resolve the sorting problem. However, I am unsure how to rename files that already contain annotations (I can't just remove them and add them again).

Describe the solution you'd like
I would like a simple method that allows me to rename these files while preserving any existing annotations.

[lfcc1]

Implementing a simple alphanumeric sort would be easier. *