Template:Cho provides an easy way to note down different chapters in Celeste, in short form (chapter/level ID). This template
The syntax goes as such if you wish to include a side (e.g. 7A):
If you wish to solely include a chapter number, and not a side...
If you wish to use the long form of a chapter's name, use ln=1...
To mention the prologue, use
Pr where the chapter ID normally would be. To mention the epilogue, use
Ep. To mention any numbered chapter, use the chapter's number (e.g. "1"). To mention a side, use a single capital letter (e.g. "A").