How can i write scenario

i want to add function to my plugin like below
1-stop after playing video
2-goto back menu (upper level in plugin)
3-select next folder
4-play new video and continue until end.

in my plugin videos in 3 parts. i have to use keyboard to go back and select next file end of every part.how can i make it auto ?

thanks for advice

You could build a playlist of your videos then play the playlist.