Data Fetcher

Open 'Template', click 'Define Data Fetcher', the above window will pop up:
All Data Fetchers: Listing all Data Fetchers for the current template.
New : creating a new Data Fetcher.
Update: updating a Data Fetcher from the list.
Delete: removing a Data Fetcher from the list.
Up: moving a Data Fetcher up. (it will change the Data Fetcher execution sequence)
Down: moving a Data Fetcher down. (it will change the Data Fetcher execution sequence)
OK: finishing the operations and return to the template.