Read LUA SCRIPTING first if you're new to mpv Scripting.

ImPlay has builtin commands that can be called with script-message-to.

This is useful for custom input bindings and scripts.

script-message-to implay <command> <args>..

For example, run script-message-to implay command-palette playlist will show command palette with playlist (You can test it with Tools - Metrics & Debug).

• open: show the open files dialog
• open-folder: show the open folder dialog
• open-disk: show the open DVD/Blu-ray folder dialog
• open-iso: show the open DVD/Blu-ray iso dialog
• open-clipboard: Open URL From Clipboard
• open-url: show the open URL dialog
• play-pause: play/pause the playback, or load the most recent file from rencent files if playlist is empty.
• load-sub: show the load subtitles dialog
• load-conf <path>: load mpv.conf, path should be absolute
• playlist-add-files: show the playlist add files dialog
• playlist-add-folder: show the playlist add folder dialog
• context-menu: show context menu
• command-palette <args>..: show command palette, args can be:
  • bindings: show input bindings
  • playlist: show playlist
  • chapters: show chapters
  • tracks <audio|video|sub>: show tracks
• quickview <tab>: show Quick Settings, tab can be:
  • playlist
  • chapters
  • video
  • audio
  • subtitle
• metrics: show Metrics & Debug window
• settings: show Settings window
• about: show About window
• show-message <title> <message>: show a modal dialog with the title and message