Does the new Punchcard visualization in Splunk 6.4 Punchcard support standard token setting and drilldown?

I've got the new custom visualization Punchcard displayed just the way I want it to, but I can't seem to set a token when I click on a circle. For example, assume I have a query such as ... | table cluster node latency color and then I use the following drilldown in my XML $row.node$node_explorer?form.node_input=$this_node$ What gets passed to the target page is `$row.node$`, which tells me that the token isn't getting set properly on the click. Do the new custom visualization support standard token setting? The doc is minimal. So I looked around, couldn't find others having this problem. I'd appreciate any ideas. Thanks.