SOLVED How do I access a named browser from another page

This is related to another active question on Problem accessing custom attributes in an MQTT plugin onPoll()

I have a page browser that is a common editor for multiple devices. I can jump to the page browser and see/edit the default device. I cannot get it to work with any other than the default device.

I cannot set the ‘Device’ parameter in the actions before or after I jump (push) to the editor page.
The set Device line always fails unless it is in a button on the same page as the browser.

I am guessing that the browser (called apcbrowser) is only accessible if you are on that page. How do I reference ‘apcbrowser’ from other pages?

Many thanks

I used a virtual variable - see this thread: SOLVED. Is there a way to force set @Device reference to a device of my choosing?