1. Run the IDE and evalutate for free.
2. Click IDE menu "Configure" or "Help" -> "Edit Custom VM Options..."
3. Append "-javaagent:/absolute/path/to/jetbrains-agent.jar" to end line.
eg:
-javaagent:C:/Program Files (x86)/JetBrains/PyCharm 2019.2/jetbrains-agent.jar
4. Restart IDE.
5. Click IDE menu "Help" -> "Register..." or "Configure" -> "Manage License..."
Support "License server" and "Activation code":
Entry license server address: http://jetbrains-license-server
Or click the button: "Discover Server" to fill automaticly.