You want a fully customizable Firework Show with frames and delays? Guess what, you found it!

Originally named Ultimate FireworkShow by igufguf!

Original Creator: igufguf , first rework by Jackietkfrost and Zuwel

Updated for version 1.16.3 and 1.20.4.

Commands
Aliases: /fireworkshow - /fws

• /fws play <show-ID>
  • Start a firework show
  • fireworkshow.play

• /fws playframe
  • Start a specific frame of a show
  • fireworkshow.play

• /fws create <show-ID>
  • Create a new firework show
  • fireworkshow.create
  

• /fws delete <show-ID>
  • Delete a fireworksshow
  • fireworkshow.delete

• /fws addframe <delay>
  • Add an empty frame to the show, delay is in ticks (1 second is 20 ticks)*
  • fireworkshow.addframe
  

• /fws delframe <show-ID> <frame>
  • Delete a frame
  • fireworkshow.delframe

• /fws dupframe <show-ID> <frame>
  • Duplicate a frame to a new frame at the end of the show
    
  • fireworkshow.dupframe

• /fws place <show-ID> <frame>
  • Place fireworks that you are holding in your hand
  • fireworkshow.newfw

• /fws highest <true/false>
  • Specify whether the firework will launch from where it was initially added to a frame or if it will launch from the highest block above or below it.
  • fireworkshow.highest

• Spoiler: Deprecated

  /fws newfw <frame>
  

  • Add the firework in your main hand to the last frame on your current position
  • fireworkshow.newfw

  

• /fws mark
  • Mark the spawn location for firework of a specific frame
  • fireworkshow.mark

• If you have any questions, suggestions or bugs, write gmrrh on Discord!