Typically, when there is existing content in a module that uses the rich-text editor, it will be shown in the
view
mode, by default and if a user has edit rights to that content, an
Edit
button or tab will be displayed. Once selected, the content will be shown in
edit
mode and the rich-text editor will be displayed. When new content is being added, the
Add new
form will show the rich-text editor by default.