I'm watching a course and he said install "Graphviz (dot) Stephanvs" extension.
I installed that extension and then reload VSCode.
I have a .dot file and when I click on ... icon I didn't see "Open Preview to the Side" option.
I also tried ctrl + k
- ctrl + k,v
- ctrl + shift + v
but they didn't work.
Finally, I installed "Graphviz (dot) language support for Visual Studio Code, João Pinto" extension instead.