How to use multiple Dimension from QlikView Extension to pass multiple variables from qvw file

[Anonymous]

Hi, My name is Shu. I'm from Ford Motor Company in Dearborn, Michigan. QlikView is a tool utilized by the organization I'm working in. I am working on a POC project that utilize QlikView Object Extension to trigger an Alteryx workflow on the server side also, in order to run the python logic embedded in the Alteryx workflow. I need to pass some user selections from the qvw file in the Extension Script.js, but right now I can pass ONE var with the below sample Definition.xml file, any pointer on how to add more Dimension/Measurement in order to pass more selections from User??

... sample Definition.xml ...

<Text Label="User" Type="Text" Initial="" Expression="=OSUser()" />
<Text Label="Doc Name" Type="Text" Initial="" Expression="=DocumentName()" />
<Text Label="Msg" Type="checkbox" Initial="" Expression="1" />
<Dimension Label="Key Field" Initial="Key" TargetName="Key" />
<Measurement Label="Write Back Data String" Initial="=1" />

...

I attached a screenshot of the button created by the extension, and its property.  Shall I just add more entries of <Dimension Label> etc, there's no clear documentation about this on the internet.