You have several options but none of them are the easy, straight forward option you may want. If you like being able to see nutrient/calorie totals by meal and snack then you will want to use the Spark D program settings which allow that. While I can tell you how to change the overall nutrient profile settings (make your changes in the regular program before changing to the Spark D program) you will not be able to change the distribution recommended for meals and snacks. The best option is to ignore the recommendations, turn off the meal plans and strictly focus on the meal totals for what you have entered and compare those with your diet prescription provided by your medical provider. This program also has a convenient blood sugar tracking feature which might also be helpful.
If the suggested totals at each meal and snack are going to mess you up and you would rather just total your own as you enter, then you might want to stay in the regular program. If you need to track blood sugars, you can still do that by using the Weigh in and other measurements page and adding it under Custom Measurements.
Hope that helps. Let me know if there is anything else I can do to help with your program set up.