Navigating through portals question?

Please, could somebody help with a question?
What is the right way to transport the current user(TAvatarUser/TAvatarReplica) into another (space or island) through portal programmaticaly (without using events, as going through portals by mouse)?
for example: when clicking on a TWindow button with '#gotoWindow:' through portal, the result is expected, that the user will be near window in other space;
or another: to navigate in created spaces or islands directly from CroquetMenuProject menu.

Thanks,
Nikolay