Enter the digit part of the metadata ID for information of the $2 ($1). You can set an arbitrary array of figures as long as the ID is not used in the same parental metadata. "1" and "01" can be distinguished as different ones. If this ID already exists, you will be sent to the form for editing that page. Otherwise, you will be sent to the form for adding the metadata.
MediaWiki:Sf formstart docu
From Metabolonote