This has never been possible for me but wanted to highlight now in R70 as its more focused on the automation parts.
I've posted about the greenwave powernode 6 not beeing fully supported here:
http://forum.securifi.com/index.php/topic,1899.0.html but it still shows up as a single binary switch and I'm able to control one outlet. Power usage reporting does not work either but that's besides the point for this issue.
I cannot control the powernode via the app, just via the Web UI and LCD UI.