Attach plugin to included laser model

Hello, My sdf model contains an included [Hokuyo laser](https://bitbucket.org/osrf/gazebo_models/src/6cd587c0a30e/hokuyo/model.sdf?at=default&fileviewer=file-view-default), and I tried to attach the rather standard `libgazebo_ros_gpu_laser.so` plugin, as follows:model://hokuyo-0.22 0 0.10500000000000001 0 0 3.141592653589793 I get this error: Model[my_laser] is attempting to load a plugin, but detected an incorrect plugin type. Indeed, from what I see in the [example](http://gazebosim.org/tutorials?tut=ros_gzplugins#RRBotExample17), the plugin is meant for `` elements. So can I access the sensor itself, and attach the plugin to it directly? If not, how do you suggest I use the plugin? Thanks,