When setting up a vaccination program, tick the checkbox under the vaccines that says "Oil and water injection with 1 needle".

Make sure the Water-based vaccine is in the Secondary Unit.

Once you click on send, the app will sync the program together with the wanted mode to the device.

After you see the two checkmarks, you will see in the Mode icon the mode is set according to the chosen vaccines: Oil&Oil or Oil&Wat depending on your selection.

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