From the Right most navigation bar, select diagnostics as shown below.
The medic will take you to the diagnostics segment as shown in the image below.
From the left navigation bar select prescriptions as shown in the image below.
Go to the past tab from the section’s navigation bar as shown in the image below.
The past tab only shows prescription(s) which were added by the doctor to the same patient in his/her past encounters.
Now to add past prescription(s) to the current encounter, press the add from the past button, present at the end of each row as highlighted in the image below.
The prescription from the past will be added to the current encounter as shown in the image below.