About the Player Toolbar

The Player pop-up toolbar provides users with VCR-like buttons or a slider to simulate the movement of parts along the track of a move activity.
This toolbar provides the following options:
 
Skip to Beginning
Step Backwards
Play Backwards
Stop
Play Forwards
Step Forwards
Skip to End
Slider: As you move the slider, you make the simulation move forwards or backwards.
Selecting Time makes the simulation proceed according to the simulation time. 

Selecting Shot makes the simulation jump from one shot to another, in sequence.

Selecting Distance allows you to interpolate along a track with a set distance. Each step is a constant distance unit (for example 1 mm). Users can move to a particular distance along the track (done with the step forward and backward buttons).

The time units (by default, seconds) and distance units (by default, mm) are set in Tools > Options > Parameters and Measure  > Units.
Player Parameters button.  More information appears below.

Loop Mode
Single loop (shows simulation once, from beginning to end). 

Note:  This is the default value.  To see other loop options, click on this button.  The option that is visible is the one that will be operating.
Continuous loop, from beginning to end, then jumps back to beginning.
Continuous loop, from beginning to end, then end to beginning.
Clicking Player Parameters brings up the Player Parameters dialog box, which enables you to set a sampling size. The Sampling Step size enables you to see the simulation at steps of every 1, 2, or 5 seconds or at set distances.  You can also select a Temporization, which enables you to determine how quickly you see the simulation.  Without selecting the parameters, you see one second of the simulation in one second of real time.  If you want to view the simulation more quickly, you can set the temporization size smaller (e.g., to .25 s) and the sample size larger (e.g., 5 s).
 
Note that Player Parameters are not saved between sessions. Edited values remain in effect for the current session, however new sessions start with the default parameter values.

Sampling Step

The sampling step corresponds to the sampling step value in seconds (the total duration is divided into intervals calculated in seconds).

By default, four sampling time steps are available, but you may edit these values whenever you need to.

Temporization

Allows you introduce a short pause between sampling steps.