Using memberaction_dropdown in a custom template?

[Cryo]

Hello,

I have a plugin that is acting as a postbit replacement. Basically, the plugin calls my custom template then registers post variables and makes it accessible to the postbit_legacy template. I have this working fine, and everything displays as it should. However, when I attempt to use...

{vb:raw memberaction_dropdown}

... it does not work, nothing displays at all. How can I make this accessible to my template?

Thanks in advance.