Customization > Extensibility Through Profiles, Stereotypes, Tag Definitions and Scripts > PTC profiles > MBRE profile > MBRE traceability matrix > Specifying the packages used to generate an MBRE traceability matrix (MBRE profile)
  
Specifying the packages used to generate an MBRE traceability matrix (MBRE profile)
By default, a new MBRE Traceability Matrix searches for valid items in the Package that owns the MBRE Traceability Matrix. You can specify which Packages to search for valid items.
To specify the packages used to generate an MBRE traceability matrix
1. Right-click the MBRE Traceability Matrix, point to Links, and then click Analyzed Packages.
2. For each Package you want to use to generate the MBRE Traceability Matrix:
a. In the Link Items pane, select the Package.
b. Click the Link button.
If you want the MBRE Traceability Matrix to search all Packages in the model, click the Unlink All button.
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Generating an MBRE Traceability Matrix for all Packages in a model may take some time.
3. Click OK.