Can't change part of a route on Google maps

[llanita]

I have Galaxy S8 and I'm trying to change part of a route but it won't let me. I can change it in PC but when I send it to my phone, it shows their route, not the one with changes.
How can I do this?

 

[lunatic59]

I don't think you can. When you click "send to phone" in maps, there's a yellow triangle warning in the pop-up that says "dragging does not effect sent route".