===== Multistatic =====

It is possible to apply two static trials to a single dynamic trial. This can be useful in many cases, for example, if you are:
  * using a digitizing pointer, you can collect one static trial with the subject and another with just the pointer.
  * doing a weightlifting trial, you can collect one static with the subject and another with just the bench.
  * wanting to assign multiple models to a single dynamic trial.

**NOTES** You should NOT use this feature if:
  * you collected two static trials because a marker fell off and was replaced. If this is the case, you would still need to associate the relevant static trials with the relevant dynamic trials.
  * you have multiple subjects in a single dynamic trial. If this is the case, consult the [[Visual3D:Documentation:Definitions:Multisubject|Multisubject]] documentation.

==== Process ====

At a high level, the process for applying multiple static trials to a dynamic trial consists of loading in the static trials, applying model templates to them, and then applying them to the dynamic trial.

  - Load two static trials by loading each trial individually:
    - **Model -> Hybrid Model from C3D File** load "StaticA.c3d"
    - **Model -> Apply Model Template** to apply model template for "StaticA.c3d"
    - **Model -> Hybrid Model from C3D File** load "StaticB.c3d"
    - **Model -> Apply Model Template** to apply model template for "StaticB.c3d"
  - Load dynamic trials (**File -> Open**)
  - Assign static trials to dynamic trials:
    - **Model -> Assign Model to Motion Trials**
      - **Select a model:** "StaticA.c3d"
      - Check **"Use Secondary Static Trials (Models)"**
      - Check **"StaticB.c3d"**
      - Check appropriate dynamic trials