user636: I have set the clip playback speed to 4.000 (to run at 4x the orginial speed) as show below. 

This is as high as the software allows. I would like to go further, perhaps as much as 12x as fast.
I am aware that the Pro version of this software includes the ability to use 'velocity envelopes' to increase the speed.

user26811: you just right clic the clip, select insert / remove embelop ,  velocity ,  then rise up that green line that appears on your clip. 

user636: The only workaround I know of is to:

Speed up the footage by the desired amount (in this case 4X)
Render the clip.
Import the clip
Repeat steps 1-3 until satisfied.

This isn't ideal as repetitively rendering the clip repeatedly is fairly time consuming.  

636: <p>I have set the clip playback speed to 4.000 (to run at 4x the orginial speed) as show below. </p>

<p><img src="https://i.stack.imgur.com/qniL6.png" alt="enter image description here"></p>

<p>This is as high as the software allows. I would like to go further, perhaps as much as 12x as fast.</p>

<p>I am aware that the Pro version of this software includes the ability to use 'velocity envelopes' to increase the speed.</p>
 26811: <p>you just right clic the clip, select insert / remove embelop ,  velocity ,  then rise up that green line that appears on your clip. </p>
 636: <p>The only workaround I know of is to:</p>

<ol>
<li>Speed up the footage by the desired amount (in this case 4X)</li>
<li>Render the clip.</li>
<li>Import the clip</li>
<li>Repeat steps 1-3 until satisfied.</li>
</ol>

<p>This isn't ideal as repetitively rendering the clip repeatedly is fairly time consuming.  </p>
