group:
You can group pictures next to one another, thus
manually setting the order for only a desired subset of pictures.
.
Cindy-Yee-Friends.jpg
Jeanne-Jesse-Almost_normal.jpg
Yue-Mike-Afterwards.jpg
endgroup

group:
Using the group feature, you can insert comments, like this one,
above a picture.
--no delimit--
.
Mike-Dan-Gaming.jpg
endgroup

group:
(Though you don't see it, various pictures are hidden using a
 "hide file" feature) --no delimit--
.
Pumpkin-Gaze.jpg
endgroup

group
Art-Cindy-Yee-Chilling.jpg
Yue-Rich.jpg
endgroup