**This is an old revision of the document!**
part of the GtC documentation
Editing, saving and reverting
Before getting into the details of editing a page, it's worth being clear about the process.
On the right of each page, in normal view, there is a small menu of icons.
If you are allowed to edit the page, there is a pencil-like icon at the top 
.
When you rest a pointer on the pencil icon up there, top right,
“Edit this page [e]” pops up (for me, at least, in English).
This is where you click / press to edit the page as a whole.
When you click there, you get the editing view of the page, and you will see buttons at the bottom for “Save”, “Preview” and “Cancel”.
If you don't want to edit the page, or if you decide that what you are about to change is not quite right, you click on the “Cancel” button and you get back to the main view of the page with nothing changed.
If you want to check how your edit will appear, without committing to it, click on “Preview”: the instructions make it clear what you should do now. It just adds a preview below, so you can check: the options remain as they were for editing.
When you are happy with your edit, you click on “Save”, and what you see goes back to the normal view, with your changes in place.
As always, you can play with this in the playground.
Editing just one section of a longer page
If the page you are on has several headings on it, you will see two or more buttons like this 
to the right and below each section that can be edited.
Hovering over that button will pop up the title of the section.
If you find it easier, you can use this to edit just the section, including the heading for that section, without the rest of the page.
The main edit button will still always work for the whole page.
Correcting or reverting mistakes
Unfortunately, the edit window doesn't have an 'undo' function. For that reason, the best way of editing is to save frequently, and if you have made a mistake you can cancel your edit and you will only lose the changes you have made since the last 'Save'.
Reverting means going back to a previous version. DokuWiki stores the previous versions of the page, and you can see all of these by clicking on the 'Old revisions' icon,
just below the edit pencil. Click on one of these, and you will see what the page looked like at some time in the past. As it says on the old revisions page, to revert to an old revision, select it from below, click and save it.