<p>Is there a way to combine a previous translation when extracting the csv file from an application? 
Or any other tool that could do this job for me? </p>

<p>I can’t really see how could i use locbaml if i had to translate everything from scratch every time i add a new control in my application.</p>

You could use the
last-child
pseudo-class on the li element to achieve this
```
```
<html>
<head>
<style type="text/css">
ul li:last-child
{
font-weight:bold
}
</style>
</head>
<body>
<ul>
<li>IE</li>
<li>Firefox</li>
<li>Safari</li>
</ul>
</body>
</html>
```
```
There is also a first-child pseudo class available.
I am not sure the last-child element works in IE though.