once i have added an answer, can i edit the citation?

Hi Steven, thanks for your question - and sorry for the delayed response. Unfortunately you cannot edit a citation as it stands, but I can support by deleting the value and you can enter it anew with the proper source. If you'd like support on that let me know which metric, company and year you need deleted.

If you would just like to change a value in case something was added incorrectly, you can edit it by clicking the value, which will take you to a separate edit page where you can click the edit icon to change the value.

You can edit citations now. You click on the value and then choose "edit" from the menu.