Introduction
LotAtc Configurator is a FREE graphical tool and the recommended way to install, update, configure and maintain LotAtc Server — without editing any configuration file by hand.
It detects every DCS instance on your computer and lets you manage LotAtc independently for each one: install or switch versions, edit the server configuration and detection profile, and manage the server data files (transponders, ATIS, users).

LotAtc Server is installed once in your LotAtc directory, but it is a DCS World module: it must be deployed inside each DCS instance you use. That deployment is exactly what the Configurator does for you.
Installation
See the Installation Guide. When you install LotAtc Server with the LotAtc Installer, the Configurator is installed alongside it and launched automatically at the end so you can deploy LotAtc into your DCS instances right away.
Overview
On launch, LotAtc Configurator presents the list of all DCS instances detected on your computer.
For each instance you get the LotAtc status:
- version installed
- status (working, not enabled, or failed)

Status of LotAtc Configurator is based on dcs.log: launch a mission in DCS at least once so the Configurator can report an up-to-date status.
Each DCS instance is managed independently. You can run a different LotAtc version per instance, switch easily between versions, and configure each one on its own.

Install & update LotAtc Server
Install
Select the branch you want (see versioning) and click the blue install button.

Update
When an update is available for the selected branch (in the example below 2.2.0 is installed and 2.2.1 is available on the 2.2 branch), just click the update button.

Switch version
Pick another branch in the selector and install it. The Configurator manages each DCS instance separately, so you can keep one instance on a stable build and another on a beta.
Configuration
Two buttons give you access to the server settings:
Config
Click Config to configure the LotAtc Server instance for this DCS instance (network port, passwords, JSON server, and more).

Use the dedicated button to quickly configure LotAtc for a dedicated server.

See the server configuration reference for the full list of available settings.
Profile
Click Profile to select and customize the detection profile used by this LotAtc instance.

In the profile tab, clone one of the existing profiles and edit the copy to make your own customization. This way your profile is not overwritten on the next update. Don’t forget to select it in DCS, or in the config / dedicated_profile for a dedicated server.
File editors
From the Config page you can also manage and edit the server data files directly, without leaving the Configurator.

Transponder files
Use Manage transponder files to create and edit transponder presets per coalition. Each file is a table of transponders (Name, Type, Callsign, modes M1/M2/M3/M4/ModeS, Onboard, Comment) and an optional mission filter.

ATIS templates
Use Manage ATIS templates to create and edit your ATIS template files.
User file
Edit the user file to manage login/password lists and IP black/white-lists. You can define blue/red users (with their Admin, God view, User flag and Full mode rights), a blacklist, a whitelist, and toggle Exclusive mode so only listed users can connect. See server authentication for the full mechanism.

Check it works
Launch DCS and start a mission. Back in the Configurator, the instance status updates to confirm LotAtc Server is running.

You can also follow the server install checklist to validate the whole setup.