Is your feature request related to a problem? Please describe.
Currently, it is not possible to sit on the train.
You can use the shift key to crouch down, but that is all.
Also, sometimes you get swung off the train with it, so I don't want to use it.

Describe the solution you'd like
Like realtrainmod, you should be able to sit tight on the train.
However, if you can't stand up after sitting down, it is meaningless (in the case of realtrainmod, the moment you press the shift key, you will be shaken off.) I thought it would be better to right-click to sit down, and press the shift key to stand up.
Forced disembarkation should be the same as before.

I understand. It's a matter of specifications.
I will delete the post.
Thank you.