As well as Label and Status, you can also assign keywords to your documents. Keywords are useful for adding arbitrary tags to documents that you can use when searching. So, for instance, you could add keywords for characters that occur in a scene, the location a scene takes place, the theme, authors referenced, or anything else (or you can just ignore keywords completely). You can add keywords by clicking on the “+” button. You can also assign keywords via the Project Keywords dialog. Open that now by clicking on the “Keywords” button in the toolbar (the black box with the key inside it) or Ctrl-Shift-O.
A floating window (that means you can keep it open while you work, and it will always “float” on top of the other windows) will appear. This shows all of the keywords that you have created or assigned to documents so far. You can also create keywords inside this window and drag them to the keywords table in the Inspector. You can change the colour associated with a keyword by double-clicking on the colour chip in the Project Keywords window. (Another way of assigning keywords is by dragging them onto documents in the binder or the outliner and corkboard views that we will look at later. You can assign keywords to multiple documents at once by selecting the documents in the binder and then dragging the keywords from the Keywords dialog onto the selection).
Try dragging the keyword entitled “Assign this one” to the keywords table.
You can assign multiple keywords at once. To see this in action, click on the triangle next to “Characters” in the black Keywords dialog to reveal the names of some characters. If you dragged the name of one of these characters to the keywords pane in the inspector, only the name of the character would get assigned. However, try holding down the “Ctrl” key and selecting multiple keywords then dragging all of the selected keywords into the inspector keyword table. Note how all the selected keywords are added.
A quick way of searching for documents that have been assigned particular keywords is to select the keywords you want to search for in the Project Keywords dialog and then click on the “Search” button at the bottom. Try that now, with the “Themes” keyword. The binder list to the left will be replaced by a search result list. Only this one document should be listed. To leave the search result list, click the “X” button in the lower right-hand corner of the binder sidebar. We’ll learn more about searching later.

Next onto one of Scrivener’s most useful features for editing documents: “Snapshots”.