Hi, I want to apply some force to a surface or multiple points on Gazebo. I used rosservice /gazebo/applybodywrench to apply external force to a point so I tried to call rosservice two time at a time by using &&. For example, rosservice call /gazebo/applybodywrench ~~~~~ && rosservice call /gazebo/applybodywrench. When I called the rosservices at a time, there was some delay between two rosservice.

Is there any way I can apply external force to a surface or multiple points at a same time?

I appreciate it.