General preferences
To get to the General preferences, just choose Preferences from the OmniFocus menu, then click the General icon if it is not already selected.
The General preferences pane contains settings for the Quick Entry window and how often the database should be backed up.
There’s also a setting for how hierarchical project and context names should be displayed in the main outline. Say you have contexts called “Home” and “Office”, each with another context called “Mac” inside it. When you see those contexts in planning mode’s context column, you might want to see their hierarchy in order to tell them apart. You might also want to see the folder hierarchy for projects in context mode. When you turn on the Show full hierarchy setting, the contexts appear as Home : Mac and Office : Mac. If you’re not a fan of the colon, you can choose or enter a different separator in the field to the right; this is used in the grouping headers and smart match cells whether you turn on the full hierarchy setting or not.