In the main Meridian window go to View --> Configuration Options
Choose the tab "Result Code Editors"
To create a graph go to "Graphing Groups".
At the bottom of the new window click the "New" button and give your group a name.
You can add a description at the top.
Click the "Add" button to add each LOINC code that you want reported.
NOTE: To find out the LOINC codes that your report contains you can hover over a test name (E.g. Globulin indicated by a red arrow) and the code is shown in the bottom left corner of the Meridan window (Indicated by a red arrow CODE: 2336-6).
Once you are done this set-up should load on the other Meridians connected to your server. They will require a restart to show the new graphs.
To group similar LOINC codes for graphing see Grouping LOINC Codes.