basic setup

Setup your files like this:
For SD Card:
(image files) .sequiviewer/NAME OF WORK/CHAPTER#/PAGE#.png
(cbz archives) .sequiviewer/NAME OF WORK/CHAPTER#.cbz
NOTE: only ZIPs are supported. no CBRs, or non-ZIPs.
For Internal Storage: other/.sequiviewer/... (the rest is the same as the above)

See these images for examples: cbz type img type

It must go in your default media location.

Note: ".sequiviewer" will be omitted for the rest of this document, however it IS still required.

extra data

hide entries
To signify an hidden work, place a file named "hidden", "hidden.txt", "r18", or "r18.txt" in the root folder of the work. Like this:
Hidden Work/hidden.txt
The contents of the file do not matter.
To access the hidden works, type 718 on your keypad.

extra metadata
To setup extra metadata, place a file in the root folder that's named one of the following: "metadata", "metadata.json", "metadata.txt".
Binetsu Kuukan/metadata.json

The contents of the file must be JSON, otherwise the application will most likely error.
{
    "name": "ひだまりスケッチ", //display name, so it can be different from the folder name.
    "sortname": "hidamari sketch", //sort name, for sorting non-ascii text.
    "author": "蒼樹うめ", //author. no other use.
    "description": "description goes here." //description. no other use.
}

you can download a template file here