Value outside the item

Hello,
first of all, thank you very much for this brilliant plugin.

However, I have a problem that I currently cannot find a solution for. The structure of my XML for import looks like this:

<meals>
<tag timestamp="1752444000">
<item>
<title>Gurken-Melonensalat</title>
<description/>
</item>
<item>
....

During mapping, everything within the item is displayed. Is there any way to include the timestamp value from the tag for each item in this list?

Best regards