new weapon (tool) for liches-streamers

Can programmers to create "ghost" mode ? When lichess player plаying this is game mode. there are many interesting liches-streamers , they show great variations throughout the game, but the viewer can not see them, just hear them. If liches-streamers have the option to switch from game mode to guest mode, they will be able to show these varition to public because you can move the black and white pieces without their opponent to see these options during the game. When finished with the demonstration lichess streamers can clicks on the button game mod and played his move.

I think this might allow players to use ghost mode to calculate instead of calculating in their heads :)

#1 In your post both "guest mode", "ghost mode" and "game mode" are mentioned. Are these 3 different modes or just different names?

#2 You have a point. Using an analysis board to calculate might be against the rules.

Is it possible to prevent the opponent from watching the stream?

I'd rather see @ZugAddict or someone write a speech processor which displays the spoken variations on the video stream. I'm working on it in my "free time"...

For me it's enough hearing them talking bout the variants. No need to move pieces.

Allowing them to move pieces would give them an extremely unfair advantage over other players. I cannot disagree more with #1.