To be able to assign violation costs and types, you will need to add a new cost structure.
Once you have completed the cost structure that you will be using, go to Settings > Violation > Locations. Click Edit on the location you want to add a violation cost to.
Under Edit Location, click Manage Violation Costs. The page seen below will pop up.
Check the boxes for all the violations you would like to add additional costs to. An example is below. In the drop-down menu to the right of the violation, you can now choose the cost structure you created prior (see below).
Click Save when you are finished.
Important: Be sure to log out of the mobile app and sign in again to reflect any settings changed. If you don't log out and in again, the changes won't be reflected.