There are two ways to add a new Fixed Charge to the Library. The first is by selecting the Save to Library checkbox when adding charges to a billing plan — this will save that charge for future use in the Library. The second is by creating Fixed Charges directly from the Billing Library as outlined below.
Log in to brightwheel on the web
Select Billing from the left sidebar and then select the Library tab
Go to the Fixed Charges tab
Click the purple Create a new fixed charge button and enter in the Category, Description, and Amount of the charge
Once complete, click Save to library