I needed to create 50 names that were similiar and incremental (ex: Tracey1, Tracey2, Tracey3, etc.). I used javascript to increment the numbers.
<!--Here I store the alpha-text part of my name as variable 'a'. This allows me to change this later to something else.-->
<tr>
<td>store</td>
<td>Tracey</td>
<td>a</td>
</tr>
<!--This increments the number ('y'), starting at 1-->
<tr>
<td>store</td>
<td>1</td>
<td>x</td>
</tr>
<tr>
<td>storeEval</td>
<td>storedVars['x'] = ${x}+1</td>
<td>y</td>
</tr>
<!--Here I type the name-->
<tr>
<td>type</td>
<td>fieldname</td>
<td>${a}${y}</td>
</tr>
<!--And the next time I need to type the name, I just increment 'y' by one-->
<tr>
<td>storeEval</td>
<td>storedVars['y'] = ${y}+1</td>
<td>y</td>
</tr>
<tr>
<td>type</td>
<td>fieldname</td>
<td>${a}${y}</td>