I have tried to build my own robot (7 DOF) through the tutorial with control, so I can move one joint at a time. I would like to be able to move all joint at the same time by issuing a trajectory, but I am having difficulty to find any tutorial about doing that. I do know that such plugin seems to exist in gazebo (gazeborosjointposetrajectory or gazeborosjoint_trajectory). Is there any good tutorial or simple example on how to do this?

It seems there is another option is to write your own plugins to do things, but I believe gazebo is already set up to just need to modify your urdf and launch files (maybe the config yaml files) to achieve this?

I am using Gazebo 6 with ROS jade.