Does BlueIris support xpath matching?

[Tygunn]

I've got Dahua cameras; I enabled Acupick and IVS and am seeing ONVIF messages like this:

<?xml version="1.0" encoding="UTF-8"?>
<s:Envelope xmlns:tt="http://www.onvif.org/ver10/schema" xmlns:tns1="http://www.onvif.org/ver10/topics" xmlns:wstop="http://docs.oasis-open.org/wsn/t-1" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:wsa5="http://www.w3.org/2005/08/addressing" xmlns:tev="http://www.onvif.org/ver10/events/wsdl" xmlns:wsnt="http://docs.oasis-open.org/wsn/b-2" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:sc="http://www.w3.org/2003/05/soap-encoding">
<s:Header>
<wsa5:Action>http://www.onvif.org/ver10/events/wsdl/PullPointSubscription/PullMessagesResponse</wsa5:Action>
<wsa5:To>http://192.168.1.114/onvif/Subscription?Idx=0</wsa5:To>
</s:Header>
<s:Body>
<tev:PullMessagesResponse>
<tev:CurrentTime>2025-07-24T02:50:57Z</tev:CurrentTime>
<tev:TerminationTime>2025-07-24T03:00:02Z</tev:TerminationTime>
<wsnt:NotificationMessage>
<wsnt:Topic Dialect="http://www.onvif.org/ver10/tev/topicExpression/ConcreteSet">tns1:RuleEngine/FieldDetector/ObjectsInside</wsnt:Topic>
<wsnt:Message>
<tt:Message PropertyOperation="Changed" UtcTime="2025-07-24T02:50:57Z">
<tt:Source>
<tt:SimpleItem VideoSourceConfigurationToken="00000"/>
<tt:SimpleItem VideoAnalyticsConfigurationToken="00000"/>
[COLOR=rgb(184, 49, 47)] [/COLOR][COLOR=rgb(65, 168, 95)]<tt:SimpleItem Rule="Car"/>[/COLOR]
</tt:Source>
<tt:Key>
<tt:SimpleItem ObjectId="19"/>
</tt:Key>
<tt:Data>
[COLOR=rgb(65, 168, 95)]<tt:SimpleItem IsInside="true"/>[/COLOR]
</tt:Data>
</tt:Message>
</wsnt:Message>
</wsnt:NotificationMessage>
</tev:PullMessagesResponse>
</s:Body>
</s:Envelope>

I've got two rules; one for cars and one for people. The rules I came up with are:
Contains: IsInside="true"
Node path: Source/SimpleItem
Attribute: Rule="Car"
Memo: Car

Contains: IsInside="true"
Node path: Source/SimpleItem
Attribute: Rule="Person"
Memo: Person

That does work, but it would be more precise to use an XPath query like: /tt:Message[tt:Source/tt:SimpleItem[@Rule="Car"] and ttata/tt:SimpleItem[@IsInside="true"]]
That xpath doesn't match in BlueIris (but does with "real" xpath matching). The docs are not very clear about the paths.