<h2><img src="js/resources/images/16x16/plot.png" style="margin: 0px 10px 0px 0px;"/>Interactive Plot Session</h2>
<p>
 PNG plot generates screen output and opens an interactive session. Using buttons/slider
you can  1) navigate back and forth in time, 2) resize image, 3) select time interval for its zooming or 
storing in time table, 4) extend/shift time interval, 5) access to Hubble Space Telescope images.
</p>
<br/>
<img class="centered" src="help/images/plot_12.png"/> 
<br/>
<p>
In case of Time Table input you navigate over Time Table intervals. 
</p> 
<br/>    
<img class="centered" src="help/images/plot_13.png"/> 
<br/> 
<p>
<b><i>Zoom In Time Interval</i></b> 
</p>
<p>
After clicking <i>Zoom In Time Interval</i> button 
select interval of interest by clicking image.
You can  either 1) zoom image or 2) insert selected interval into new or existing time table.
Time Table name is to be typed (or dragged/dropped) in the <i>Add In Time Table</i> field. 
</p>
<br/>
<img class="centered" src="help/images/plot_14.png"/>
<br/>
<p>
<b><i>Extend/Shift</i></b>. Time extention/shift value can be positive (interval extention, positive time shift)
or negative (interval shrinking, negative time shift). 
</p>
<p>
You find the description of 5) access to Hubble Space Telescope images in the <i>Access to Hubble Images</i> section.
</p>
<br/>