Hammer++/Docs/Installation for Other Games

Hammer++ is a powerful mapping tool that solves many issues that the Hammer introduces, and adds some much needed features that useful to every mapper, however there is no version of Hammer++ that directly supports the Portal 2 engine branch out-of-the-box. Thankfully, there is a way to configure a Hammer++ configuration, using the Counter-Strike: Global Offensive branch, to use Portal 2 assets and entities.
This method was originally taken from this steam guide. Use this while the article is still under construction

Installing Hammer++ for Portal 2

Step 1: acquiring necessary files

Go to the Hammer++ website and navigate to the download section. Download the CS:GO version.

Warning:Make sure you are downloading the CS:GO version and not the CS:S version!

Next, make sure you have CS:GO downloaded on your computer. It is not needed to launch the CS:GO SDK, nor is it needed to ever launch the game, you just need the files on your computer.

Step 2: Installing Hammer++

The next step is actually installing Hammer++ into the CS:GO files. Drag the bin folder in the archive into the Counter Strike: Global Offensive folder in your steamapps/common folder. Now, go into the bin folder and launch Hammer++.

Step 3: Setting up a Portal 2 configuration

Now, we will create a new configuration pointed at the Portal 2 assets. Now, this is where things can get complicated.

More info coming soon, please refer to the original steam guide while information is lacking.