Main Menu¶

Main Menu

1. Loading an Existing Map¶

This section allows you to continue working on maps saved on your drive.

Load existing map submenu

Map Selection¶

The dropdown menu contains all maps detected in your simulator directory:

[...OMSI 2/Maps]

Map selection

Newly Added Maps

If a new map is added to the Maps folder from outside while nEditor is running, the selection list will not reload automatically. To refresh the map list, restart the editor.

Save State Selection¶

Each map can have multiple independent save states:

Save state selection

When opening a map in nEditor for the first time, a base save named Main will be generated automatically.

2. Creating a New Map¶

This function enables you to create a completely new map in OMSI 2 format from scratch.

Create new map submenu

Required Map Templates

nEditor does not contain built-in game files. To successfully generate a new map, the clean map template provided with the original game is required:

[...OMSI 2/template/NewMap]

New Map Name¶

Enter a unique directory name for the new map (without spaces or special characters):

New map name

Geographic Coordinates (GPS)¶

Geographic coordinates checkbox

Fictional map: Leave the checkbox unchecked.
Real-world map: Check the Use real-world coordinates checkbox to unlock input fields for the starting GPS coordinates.

Entering latitude and longitude

Enter the geographical coordinates in decimal format: * Latitude (lat) * Longitude (lng)

Example (Berlin – Rathaus Spandau): lat: 52.535153, lng: 13.199932

Accurate coordinates are crucial for the proper alignment of aerial satellite imagery and Digital Elevation Models (DEM).

No Reverse Conversion

nEditor does not support converting a fictional map into a real-world coordinate map automatically. To achieve this, use the conversion tool in the original OMSI 2 editor.

3. Statistics¶

This section displays an overview of scenery objects, splines, and textures indexed in the editor's local cache.

Imported assets statistics

4. Thumbnails¶

This window displays the number of generated visual previews for objects and splines.

Thumbnail management panel

Clicking the Generate thumbnails button starts background rendering of any missing thumbnails.

5. Backup Manager¶

The Backup Manager periodically takes snapshots of your map progress at regular intervals, protecting against crashes and data loss.

Menu Icon	Manager View

Backup Settings¶

Backup settings

Create backups: Checking this option enables automatic snapshots.
Every minutes: Defines the snapshot interval (e.g., every 15 minutes).

Restoring and Deleting Backups¶

List of created backups

Restoring a backup: Clicking the black button with the map and save name copies the archived snapshot into the main database as a new, independent save state.
Deleting a backup: The Drop backup button permanently deletes the selected backup snapshot.

6. Save Manager¶

An advanced inspection and modification tool for the nEditor internal database at the map, save, and individual terrain tile levels.

Save manager icon

Main Save List¶

Main save list

Black buttons with save names: Expand the list of tiles associated with that save.
Red Drop save button: Deletes the entire save state. If all nEditor saves for a given map are deleted, reopening the map will reload raw data directly from the OMSI 2 simulator files.

Save Details and Tile List¶

Tile list in save

Tile Name: Expands a detailed property sheet of the selected sector's geometry.
Drop tile: Permanently removes an individual tile from the save.

Risk of Save Corruption

Deleting a tile or manually editing raw parameters can lead to scene inconsistencies. Exercise caution.

Specific Tile Inspector¶

Tile editing form

This window displays raw data defining the tile structure: * Tile dimensions and coordinates * Splines and connectivity nodes * Scenery objects and vegetation * Spline-attached objects * Digital Elevation Model (DEM) height grid * Surface terrain texture masks

The Save tile button permanently writes changes to the database record.¶

7. Autosave Mode (Autosave vs Manual Save)¶

In nEditor, the default behavior is to immediately save every operation to the database. Version 1.1.0 introduces an Autosave toggle, allowing you to disable automatic saving and work in a traditional manual save mode.

What is the difference between the two modes?¶

Autosave Enabled (Default):
- Every action (placing an object, drawing or moving a spline, editing terrain) is instantly committed to the local SQLite database.
- This provides maximum protection against data loss in the event of an unexpected program shutdown.
Autosave Disabled (Manual Save Mode):
- Changes are kept in memory (as modified tiles – dirty tiles), reducing continuous disk I/O operations.
- A dedicated toggle appears in the editor's main menu:
- Manual saving can be triggered at any time by clicking the save button on the top menu bar or by pressing the universal shortcut Ctrl+S.
- Data Loss Protection: When attempting to exit to the main menu (Exit to menu) or close the editor (Exit), nEditor checks for unsaved changes. If changes exist, a confirmation dialog appears asking whether you want to save your progress before leaving.

8. Database Maintenance Tool¶

During extensive editing sessions on large maps, nEditor's SQLite database may become fragmented or grow large due to free pages left behind by deleted items (freelist).

A dedicated optimization tool is available in the main menu for diagnostics, defragmentation, and database compaction:

Database Maintenance Tool

Key Capabilities:¶

Real-Time Diagnostics: Displays the exact database file path, current disk size, unused space (Unused/Freelist), and optimization status (INCREMENTAL or LEGACY FORMAT).
Migration to INCREMENTAL Format: Older legacy databases require a one-time migration that enables automatic page release (auto_vacuum = INCREMENTAL).
Fast Rebuild & Compact (VACUUM INTO): Rebuilds the database using SQLite's high-speed VACUUM INTO routine, eliminating fragmentation and reclaiming disk space.
Working Drive Selection with Free Space Check:
- Automatically calculates estimated required workspace (~1.1× actual data size).
- If disk space on the system drive is limited, select Custom Location and click Browse... to pick another drive (e.g. D:\).
- Displays live free disk space for the chosen location.
Live Log Console: Shows real-time progress for each stage of the rebuild process.

9. Map Validator¶

The main menu features a dedicated Map Validator button. This tool thoroughly audits OMSI 2 map files for hidden issues that the game fails to report clearly (e.g. Fehler bei Bereichsprüfung, missing tiles, empty logfiles).

For full details on all verification rules, see the dedicated chapter: Map Validator.