Is it possible to automatically fill in the "To" field when building a route?

Question

JavaScript

Hello everyone, I want to implement the construction of a route on a local map with labels and the question arose of using a standard tool.

var control = myMap.controls.get('routeButtonControl');

The "from" field is automatically filled in and depends on the current position of the user, and the "To" field would like to be automatically filled in depending on the marks on the map.
How can it be implemented? Is it even possible to bring the operation to a separate "Build route" button (eg javascript) Outside the map that will open a window and implement this?