Navigate to the patient's PMR

Click on the add column button - see highlighted below

tick the box of the column you want displayed on a PMR

The column will now be added

Click Save Layout

If, after adding the column, you can't see it, click once on any dispensed item in the PMR, then use the left and right arrow keys on your keyboard to move through each column.

You can also move any column by selecting and holding the column header name and dragging the column to where you want it