loading a predefined plugin via a umenu message into the [vst~] object

hello forum, probably a really simple answer, but I cant get my head around it, at the moment.

Is it possible to load a plugin into the vst~ object via a message, instead of the [plugin] message which opens a pop-up window. In the ideal world, I would want to have a [umenu] of plugins, so that I could do it in house so to speak and then in turn [pattr] store it for easy recall.

hope someone can put me in the right direction, cheers. - rob.