1) You can print blue cards from the merit badge tab on a user's profile
2) You can print blue cards based on the results of options chosen using the merit badge book. This includes the ability to print a blue card for every merit badge ever earned in your troop. This can take a few minutes, so the PDF is actually emailed to you when it's ready.
3) You can upload images of signed blue cards for a merit badge on the user profile.
4) Blue cards printed with the methods described in #1 & #2 will include the requirement #'s and completion dates on the back.