Multiple projects Xpath

Is it possible to access Request/Response fields via different Projects using Xpath?
I have the following situation:

Workspace
   -project1
      -TestSuite1
        - Testcase1   
            -testStep1
            -teststep2
   -project2          
      -TestSuite2
        - Testcase2   
            -testStep2

I need to access request properties of project1->...testsStep1 from project2..->teststep2
For example:
In project2 ->..->testep2

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:a="">
   <soapenv:Header/>
   <soapenv:Body>
      <a:request>
         <a:id>1</a:id>
      </a:request>
   </soapenv:Body>
</soapenv:Envelope

Where <a:id>1</a:id> - value from project1->..->testep1
The XPATH expression doesn't work

${project1#TestSuite1#Testcase1#testStep1#Request//a:id}