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Level Browser Reference

Document Summary: A reference for the Level Browser in the Unreal Editor.

Document Changelog: Created and maintained by Richard Nalezynski.

Introduction

The Level Browser allows you to view the Levels in your current world. A world can consist of one persistent level, and any number of streamed levels. See the Level Streaming How-To page for more details.

Opening the Level Browser

Level Browser Overview

Browser Layout

BrowserLayout.jpg

  1. - Menu Bar
  2. - Levels List

Menu Bar

Level

  • New... - Add a new Level to the Persistent level.
  • Import... - Import a Level into the Persistent Level.
  • Make Current - Set the selected Level as the Current Level.
  • Remove Level from World - Remove a Level from the Persistent Level.

View

  • Refresh - Refresh the Levels List.

Levels List

The Levels List shows the Persistent Level, as well as any additional Streamed Levels. The level denoted as CURRENT is the level that will be modified if changes are made in the editor windows or Kismet.

The Visible checkbox allows you to hide and unhide the levels in the editor, although this is for visualization purposes only and has no bearing on whether or not a level will stream into the game when it is run. However, a level that is not visible here will not be affected if you rebuild the level, which can be a great timesaver if you have complicated levels.

Currently, the following are not functional: Draw Bounding Box checkbox.

Context Menu

level_browser_context_menu.png

  • Make Current - Make the selected Level the current Level
  • Level Properties... - Opens the level properties editor for all selected levels
  • Find in Content Browser... - Selects (in the content browser) all packages belonging to the selected levels
  • Find in Scene Manager... - Shows the selected levels in the scene manager
  • Select All Actors - Selects all actors belonging to any level in current level selection set
  • Save - Saves all of the selected levels (Note: Only visible unlocked levels can be saved)
  • Show and Hide - Makes all selected levels visible or invisible
  • Show Only Selected - Makes all selected levels visible and all other levels invisible
  • Show Only Unselected - Makes all selected levels invisible and all other levels visible
  • Show All and Hide All - Makes all levels visible or invisible
  • Lock Selected Levels and Unlock Selected Levels - Lock or unlock all selected levels
  • Lock All and Unlock All - Locks or unlocks all levels
  • Select All - Select all levels
  • Deselect All - Empty the level selection list
  • Select All Visible Levels - Select all of the levels that are currently visible
  • Invert Level Selection - Invert the level selection set
  • Clear Streaming Volumes - Clears all streaming volume associations for the currently selected levels
  • Select Associated Streaming Volumes - Selects (in the editor) all of the associated streaming volumes for the selected levels.
  • Self Contained Lighting - Toggles the 'Self Contained Lighting' property for each of the selected levels
  • Assign Keywords... - Allows keywords to be associated with the currently selected levels

Filtering

Adding keywords to DefaultEditor.ini, like the following, will enable filtering of sub-levels based on assigned keywords. 

[LevelBrowser.Keywords]
Keywords=Mission
Keywords=Script
Keywords=Cinematic
Keywords=Audio
Keywords=World
Keywords=Background
Keywords=LOD

To assign keywords, select "Assign Keywords" in the context menu which will bring up a check box list dialog. To narrow the set of levels, use the "Filter by keyword" menu at the top of the level browser.

FilterMenu.jpg