Run macro in browser and then continue in new popup browser window?

I am running a macro that does some activities, then clicks on a link. That link opens up a new popup window. How do I continue the macro in that new popup window? I can’t just use XClicks and vision because I actually need to interact with xpaths etc in the new popup window

I have tried selectWindow, title=title but it doesn’t work since that is only for tabs.

Is this possible with Ui.Vision?