Many times in Revit, you create Levels that are utilized for various purposes. Sometimes, there are some of those Levels that you do NOT want to display in elevation and section views on the final construction documents. They are Levels that you use for your design, but might be confusing to those viewing your construction documents. Therefore, it is best to just not have them seen. This is a common practice for all disciplines.
Levels are turned on or off easily in the visibility controls, however, that control turns ALL Level markers on or off. A good way to control which ones you want seen is to create a new Level Type that is specifically used when you don’t want to see that level. You can then create a View Filter to filter for that new Level Type and turn it off in the views where you desire the level to not be seen.
The following illustration shows the same project file with 2 different elevation views. The view on the left has a new Level Type turned off and the right view has all Level Types turned on.