> For the complete documentation index, see [llms.txt](https://docs.chamilo.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chamilo.org/1.11.x/teacher-guide/wiki/commenting_a_page.md).

# Commenting a page

By clicking the *Discuss this page* icon ![](/files/-LH9CtzfvOFBqTo0MikD), you get access to a form to add/see comments. This area is visible and can be updated by any user. Other actions which can be executed on wiki pages are:

| Icons                                                             | Features                                                    |
| ----------------------------------------------------------------- | ----------------------------------------------------------- |
| ![](/files/-LH9CtzvDLbNkIqp7hDK)                                  | Check the history of changes of a page                      |
| ![](/files/-LH9Cu-76i6OikOY7OQW)                                  | Show a list of pages linked to the current page             |
| ![](/files/-LH9Cu-AceMoy3gM0sES)                                  | Delete the current page                                     |
| ![](/files/-LH9Cu-LvH5qnvX2KNtl)                                  | Export the page as an HTML document                         |
| ![](/files/-LH9Cu-Su-kAufwlbLei)                                  | Export the page as a PDF document                           |
| ![](/files/-LH9Cu-XET6ymxWlV8_j)                                  | Get an e-mail notification of all changes made to this page |
| ![](/files/-LH9Cu-cCev6QtlYm2Px)                                  | Make a page visible/invisible to learners                   |
| ![](/files/-LH9Cu-nirH8niv-OLtY) ![](/files/-LH9Cu-wU2eluveAMPrL) | Lock / Unlock a page for edition by learners                |