Go to Settings > Boluses.

Set your Correction Bolus Ratios. These are used to calculate boluses to correct high blood glucose. For example, 2.0U of insulin corrects 200 to 100 (with a ratio of 1U : 50 mg/dL).

Set your Carbohydrate Bolus Ratios. These are used to calculate boluses for carbohydrates. For example, 10.0U of insulin is needed for 70g (with a ratio of 1U : 7 grams).