I'll share what I found out
The way to change the speed of animation is to change the value of “operation”
“Loop with number of times” such as “bath handjob movement” will be faster if you reduce the number of times
loop,
and “variable operation” such as “sister toilet back movement” will be faster if you reduce the number of times loop.
Adding voices and sound effects is also easy.
For voices, simply insert a prepared voice mp3 into the animation or action.
Sound effects are played by adding sound effects to images in the “Movement” section.