Hi Iryna!
Sorry, but I just saw your post now.

In my job we are already programming using VsCode.

If you are going to use it, you can follow the tips of the links:

https://docs.intersystems.com/irisforhealthlatest/csp/docbook/DocBook.UI...

or 

https://www.youtube.com/watch?v=VnceVuRXxKA