Automatically delete chapters from files

[Change]

Hello,

currently i have some series in my Computer. These series are in mkv-format.
Every episode contains 6 chapters

Now i would like to remove the Intro and Outro (chapter 2 and 5) of every episode.
I started with some powershell code and tried MKVToolNix, but i stuck a bit.

What is the easies way to achieve this? I thought about extracting chapters information, splitting the file regarding the extracted information, delete chapters 2 and 5 from the splitted files and from the chapters information and then merge the remaining splitted chapters and the edited chapters information back into one file. Is that the most effective way or can you tell me a better way?

Many Thanks in advance

[ProWo]

I thought about extracting chapters information, splitting the file regarding the extracted information, delete chapters 2 and 5 from the splitted files and from the chapters information and then merge the remaining splitted chapters and the edited chapters information back into one file. Is that the most effective way or can you tell me a better way?

This is the way to go.
You can use clever FFmpeg-GUI.
Load your episode, click main, click extract streams, diselect all streams except the chapters stream, click extract.
Then click chapters, click deactivate (to deactivate the embedded chaperts), click external file and search for the extracted chapters txt file.
Click Edit chapters, delete chapters 2 and 5 and save the file.
Click main, click multiplex and click multiplex.
Done.