To create a new trajectory, right click on the sphere pointed by the Q vector (the blue one) to define the start point of your trajectory and drag the sphere while holding the right button. Then release it to define the end point (see image below).
The new trajectory now appear in the trajectory panel (Panels > Show Trajectory). Trajectories can either be modified by clicking on a given trajectory, renamed or deleted.
In the same way, you can define multiple trajectories by following the same steps.
#### Export to nomad
To exports all trajectories into a XBU file readable by Nomad, click on "Export to nomad" button on the trajectory panel (Panels > Show Trajectory). It will create a XBU file named vEXP.xbu under the user's XBU path.
