Open the Steam Console
With Steam running, go to this URL in your browser:
Code
steam://nav/console

Command Syntax
Code
download_depot <app_id> <depot_id> <manifest_id>

To download the following versions, enter these commands:

3.0.141.916
Code
download_depot 664400 664401 5773108631547122923

3.0.146.461
Code
download_depot 664400 664401 7444801498268476233

Since we can't edit our own posts after some time, this post won't be updated with commands for downloading future versions.

For future versions, find the Manifest ID here: The Divinity Engine 2 - Previous Manifests.

The depot will begin downloading. You should receive a notification when the download is complete.

The depot will likely be downloaded to the following path:
Code
C:\Program Files (x86)\Steam\steamapps\content\app_664400\depot_664401\

You can move the depot_664401 folder anywhere, and run the editor from DivinityEngine2.exe in that folder.

If you'll be downloading multiple versions, you should organize these depots. I use the following directory structure:
Code
E:\DivinityEngine2\
E:\DivinityEngine2\3.0.141.916\
E:\DivinityEngine2\3.0.146.461\

Identifying the Editor Version
You can easily find the version of the editor using these steps:

1. Right-click DivinityEngine2.exe.
2. Click Properties.
3. Go to the Details tab.

The version number will be the value of the File version field.