Want to connect two lines on the same side of a shape

I want to connect two lines on the same side of a shape, but even if I set different coordinates, it will become one line after importing the file(the right side photo).

I want to make something like the one on the left, how can I do it? (Edit the js file or?)

Currently such functionality is not supported.
I’ve sent your request to the dev team and it will be observed, so the probable solution may appear in the future updates.