Answer
When entering the homepage address (URL) in the "contents" (text part, table part, sentence attached photograph part) link setting is automatically done on the public page..
Precautions for use
* The link setting is fixed to the display in the new window and can not be changed
* In the text part of the link setting, the entered URL is displayed
* You can not set link to arbitrary text
* Only the public page can actually check link display
* On the edit screen, you can not refer to the linked page even if u click on the URL
