To edit an existing price list, head over to the Control Panel, under the Billing section, click on Manage Price Lists.
The list of existing price lists will appear, click the 'Pencil'-icon.
The following dialog will appear, you can edit any rules, filters, and conditions you want.
For more information about rules & filters, click here.
For more information about how to add rules, click here.
For more information about how to add filters, click here.
After editing the price list, click the Save button, and you are done.
Note:
1. Ensure that you are a User with 'Administrator'-rights set up to be able to access Control Panel.