Access Parent node content in the child node

I created one task node in ROKU. Task node child for the scene node. I tried to display scene node content inside a task node. I used two ways to add a child. this is below.

m.UserActiviity = CreateObject("roSGNode", "UserActiviity")
m.view.appendChild(m.UserActiviity)

and 

m.UserActiviity = m.view.createChild("UserActiviity")

using this code I run all task node like a thread. I know task node work as thread. But Any option is available for this. I tried with the event. also using a global node. But no luck.