A small Windows GUI tool (Tkinter) for editing two values in Rainbow Six Siege’s GameSettings.ini:

• MouseSensitivityMultiplierUnit (sensitivity multiplier)
• DataCenterHint (server / data center region)

The tool helps you quickly change these settings without manually opening the .ini file.

• Clean dark-themed UI
• Two one-click actions:
  • Change Sensitivity Multiplier
  • Change Server Region
• Remembers your selected settings folder in a config file:
  • ~/.r6s_settings_tool.cfg
• Displays current multiplier and current region in the main window
• Safety check: refuses to run if RainbowSix.exe is running (to avoid editing while the game is open)

• Windows (uses tasklist to detect RainbowSix.exe)
• Python 3.10+ recommended
• Tkinter (usually included with standard Python on Windows)

No third‑party Python packages required.

This program edits the following lines in GameSettings.ini:

• MouseSensitivityMultiplierUnit=...
• DataCenterHint=...

It reads the current values, shows them in the UI, and rewrites only the matching line(s) when you apply a change.

1. Close Rainbow Six Siege if it is running.
2. Run the .exe
3. On first run, you’ll be prompted to select your R6S settings folder (it must contain GameSettings.ini).
4. Use the buttons to change:
   • sensitivity multiplier, or
   • server region
5. Press Escape to close the app.

Your GameSettings.ini is always under your Documents folder, inside the Rainbow Six Siege “My Games” directory:

1. Go to:

   C:\Users\<USERNAME>\Documents\My Games\Rainbow Six - Siege\

2. Inside that folder, open the folder with the long ID string (this is your R6 account ID), for example:

   c91c91c9-1c91-c91c-91c9-1c91c91c91c9

3. The file will be located here:

   C:\Users\USERNAME\Documents\My Games\Rainbow Six - Siege\<ACCOUNT_ID>\GameSettings.ini

When the tool asks you to select a folder, select:

C:\Users\USERNAME\Documents\My Games\Rainbow Six - Siege\<ACCOUNT_ID>\

(the folder that contains GameSettings.ini).

• The window is borderless and stays on top.
• You can drag the window by clicking and dragging anywhere.
• The selected folder is stored in ~/.r6s_settings_tool.cfg.
• The UI displays a privacy-friendly shortened path (e.g. ...\Parent\Folder\GameSettings.ini).

The region picker includes:

• Default
• West US, Central US, South Central US, East US
• West Europe, North Europe
• East Asia, Southeast Asia, Japan East
• South Africa North
• Australia East
• Brazil South
• UAE North

(These map to DataCenterHint values like playfab/westus, etc.)

This tool edits a game configuration file. Use at your own risk. Always keep backups if you’re unsure, and make sure the game is closed before applying changes.