If the major mode of the current buffer is derived from text-mode, then a Text menu is displayed in the main menu bar.
The menu hierarchy of the Text menu is described below with the actual command shown in parenthesis next to its label.
anju-transform-text-menu)
upcase-region)
downcase-region)
capitalize-region)
anju-style-menu)
anju-style-bold)
anju-style-italic)
anju-style-code)
anju-style-underline)
anju-style-verbatim)
anju-style-strike-through)
anju-style-remove)
anju-center-text-menu)
center-line)
center-region)
center-paragraph)
anju-fill-text-menu)
fill-paragraph)
fill-region)
fill-region-as-paragraph)
fill-individual-paragraphs)
fill-nonuniform-paragraphs)
toggle-text-mode-auto-fill)
Note the Style menu is visible only for Org and Markdown modes.
This modification is optional. For more detail, see Text Menu Customization.