This view displays all available styles for your current project (you have to select a file or project e.g. in the Doqua Navigator ). By clicking the checkboxes in front of the styles you enable or disable them.
If you select a folder or the project itself, the styles' checkboxes can have a light-gray checkmark, which means the style is activated for some files in the folder and deactivated for others. In this case, you can reset the style settings for all documents in the folder by clicking on the folder's checkbox for that style.
Note: after having changed a setting for your selection, you have to click “save” in order to enable the settings. If you just leave the view and activate another one e.g. an editor, i-net Doqua will ask what to do. You can either save or revert the assignments. Note that you can tell i-net Doqua to remember your decision of what to do when you leave the view with unsaved assignments.