In a multi-node installation the sub-element <node> is added to the <resourceid> element of a screen export.

Eg.

<screens>
<screen>
<screenitems>
<screenitem>
<resourcetype>1</resourcetype>
<resourceid>
<node>Prod Hosts</node>
<host>server1.mydomain.com</host>
<key_>squid.request_hit_ratio</key_>
</resourceid>
<width>350</width>
<height>100</height>
<x>1</x>
<y>0</y>
<colspan>0</colspan>
<rowspan>0</rowspan>
<elements>0</elements>
<valign>0</valign>
<halign>0</halign>
<style>0</style>
<dynamic>0</dynamic>
</screenitem>
</screenitems>
<name>PROD squid hits</name>
<hsize>1</hsize>
<vsize>1</vsize>
</screen>
</screens>

Subsequently attempting to import the screen fails with:

XML file contains errors. Error 28: Datatype element resourceid has child elements [ Line: 7 | Column: 0 ]