DataQueue and DataStack
The objects DataQueue 
and DataStack 
are lists with one column. They share all methods and attributes, but differ in their built-in properties.
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List Ribbon Tab
The List Ribbon Tab of the list objects provides the following commands. Not all list objects provide all of the commands shown below.
To add the DataStack and DataQueue to your simulation model, click 
Manage Class Library > Basic Objects > InformationFlow > DataStack or DataQueue on the Home ribbon tab.
Related Topics
Methods of the DataQueue and the DataStack
Read-Only Attributes of the DataQueue and the DataStack