After creating a user account for your check in screen in EMIS web as per our guide here
You will then need to enable the "Patient Entry Touchscreen" API in EMAS manager.
EMAS manager can be accessed from the main menu, under system tools.
Inside EMAS manager, click on "Partner API"
Now locate Patient Entry Touch Screen in the list above, click to select it and then click Activate Application button.
Next click Edit Users button, locate the user engagehealth in the list and tick the box.
You will be prompted to set a password, enter the same password that you used for the user account
Click OK.
Next click on the Login Access button.
Tick both boxes (Auto Login and Allow Login) alongside this user account:
Click OK.