The Traceability Matrix report shows the links between the issues of whatever two saved filters on a matrix view.
It allows manage links (create, view and delete) from the matrix itself and also supports pan & zoom with the mouse.
How to open Traceability Matrix
It is available from two locations:
The JIRA top menu Links/Apps > Matrix/Traceability Matrix:
Server/DC
Cloud
The link can be disabled by a JIRA Administrator from the Links Hierarchy installed modules (Server/DC only):
2. The JIRA Project Reports > Other section (Server/DC):
How to navigate along Traceability Matrix Menu
Click on Select Filter.. link to bring up the Filter Picker dialog:
Server/DC
Cloud