How to send an element multiple times in the same request in SoapUI using groovy - web-services

Question

Can someone help with soap ui mock service? I want to send one part of my request n times.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:inv="http://www.testSoap.com/InvoiceService/">
<soapenv:Header/>
<soapenv:Body>
<inv:addInvoice>
<invoice>
<fkId>2</fkId>
<dateTime>08/02/2023</dateTime>
<status>none</status>
<!--1 or more repetitions:-->
<invoiceData>
<id>1</id>
<MPK>test</MPK>
<RK>test</RK>
<value>500</value>
</invoiceData>
<payments>
<pid>2</pid>
<type>xd</type>
<valueTotal>3000</valueTotal>
</payments>
</invoice>
</inv:addInvoice>
</soapenv:Body>
</soapenv:Envelope>
How can I add the invoiceData element 3 times? Do I change something in eclipse to do that?
def holder = new com.eviware.soapui.support.XmlHolder(mockRequest.requestContent )
// get arguments
def fkId = Integer.parseInt( holder["//fkId"] )
def dateTime = holder["//dateTime"]
def status = holder["//status"]
def id = Integer.parseInt(holder["//id"])
def MPK = holder["//MPK"]
def RK = holder["//RK"]
def value = Float.parseFloat(holder["//value"])
def pid = Integer.parseInt( holder["//pid"] )
def type = holder["//type"]
def valueTotal = Float.parseFloat(holder["//valueTotal"])
context.operationLogs += fkId
context.operationLogs1 += dateTime
context.operationLogs2 += status
context.operationLogs3 += id
context.operationLogs4 += MPK
context.operationLogs5 += RK
context.operationLogs6 += value
context.operationLogs7 += pid
context.operationLogs8 += type
context.operationLogs9 += valueTotal
requestContext.result1 = fkId
requestContext.result2 = dateTime
requestContext.result3 = status
requestContext.result4 = id
requestContext.result5 = MPK
requestContext.result6 = RK
requestContext.result7 = value
requestContext.result8 = pid
requestContext.result9 = type
requestContext.result10 = valueTotal
requestContext.result = [fkId, dateTime,status,id,MPK,RK,value,pid,valueTotal ]
context.fkId = context.operationLogs.size
context.fkId = context.operationLogs1.size
context.fkId = context.operationLogs2.size
context.fkId = context.operationLogs3.size
context.fkId = context.operationLogs4.size
context.fkId = context.operationLogs5.size
context.fkId = context.operationLogs6.size
context.fkId = context.operationLogs7.size
context.fkId = context.operationLogs8.size
context.fkId = context.operationLogs9.size
How i can send multiple tiem this part request
<!--1 or more repetitions:-->
<invoiceData>
<id>1</id>
<MPK>test</MPK>
<RK>test</RK>
<value>500</value>
</invoiceData>
i have one or more repatitons by i always send only one time
The results should be something like this using
SupplierData elements, but when I try to add the invoiceData element using my Form 3 times I only get 1 invoiceData element and the 2nd and 3rd elements are missing.