Download the file 'Grand2020.Script.txt' to your trackmania folder 'Documents\Trackmania\Scripts\EditorPlugins\TrackMania' then restart your Trackmania game.
1. First, download the latest version of the script.
2. Copy/Paste the script to your Trackmania Folder ('Documents\Trackmania\Scripts\EditorPlugins\TrackMania' or 'Documents\Trackmania2020\Scripts\EditorPlugins\TrackMania').
3. Start or restart your Trackmania game.
4. Open the advanced map editor with mouse & keyboard (not with gamepad and not in simple editor).
5. Open the Plugins tab [P] and find the script. If it does not appear, reload all scripts (on the left of the create button in the plugin tab).
6. Start the plugin and enjoy the GRAND2020 multi-editor!
In case of troubleshooting, you can ask your questions on Discord.