You may want to hide rulers on the WYSIWYG pane to unclutter the screen when editing text on the Articles main tab.
The default setting: enabled.
The recommended setting: what you want.
To hide rulers on the WYSIWYG pane
1.On the Edit menu of the Articles main tab, or on the Edit menu of the Pages main tab while editing text, click Preferences.
2.On the Display sub-tab of the WYSIWYG tab, untick Show rulers.
3.Click OK to save the preference.
About saving preferences in database
When you click OK, the preferences are updated in the memory and applied right-on. GN4 will store the preference in the database when you exit application. Anyway, should your GN4 crash or exit in any other abnormal way, the preference will not be stored in database, and you will have to repeat the previously described steps.
This preference is stored in the Editorial_SystemUserConfig for the securityRef corresponding to the user name. To display that configuration, open EdAdmin4, click Client Applications, expand the search pane in the left sidebar, in the Name enter editorial, and in the securityRef select the name of the user. Double-click the Editorial_SystemUserConfig to open the content. Locate the preference by name.