Trying to install idlForm plugin

I am working with the release candidate for FarCry 5.
I updated this evening and it went very smoothly.
Thanks to Jeff Coughlin's instructions.
I am following the install instruction and attempting to modify them for the FarCry 5 architecture.

I have modified the following by adding idlForm as described.

farcry\core\tags\farcry\farcryInit.cfm(37): <cfparam name="attributes.plugins" default="farcrycms,idlForm"  />

But I can't get the plugin to appear in the Types list after an updateapp.
Am I doing it wrong or is this plugin not compatible with 5 yet?