Management of Milestone Smart Client from web application

We are developing a web application. And we need to be able to switch to the running instance by clicking on the button Milestone Smart Client application and open a specific view in the tree. We know that this can be done with SCS scripting. However, this method opens a new instance window of the Milestone Smart Client application. And we need to do this in an already open, running instance of the application. In other words, by clicking on a button in the web application, we must set the focus to the Milestone Smart Client application and open a certain view in it. I would be grateful for any advice.

I have consulted Milestone Development but you will need to make a Smart Client Plugin instead of a web application in order to have communication.