Unclear Trickplay documentation for iFramePlaylist - Help wanted.

[KingJammin]

I'm struggling to create an iframe manifest. I've read all the documentation and articles that I can find, but everything is fragmented.
https://bitmovin.com/docs/player/articles/player-thumbnail-preview-support
https://bitmovin.com/docs/encoding/api-reference/sections/manifests#/Encoding/PostEncodingManifestsHlsStreamsIframeByManifestIdAndStreamId

1. The process is unclear. Am I supposed to generate the thumbnails, then create a manifest with those thumbnails and attach it to the main manifest? Or does https://bitmovin.com/docs/encoding/api-reference/sections/manifests#/Encoding/PostEncodingManifestsHlsStreamsIframeByManifestIdAndStreamId do something completely different?

I would love some help or direction on this.

[KingJammin]

Also, it would be nice to have a Discord or Slack channel for the development community. The documentation has been difficult to navigate, and the community section has been hard to communicate.