Whenever you execute a command from the All commands section of from on of your custom collections, it will be saved to your history giving you access to your latest used commands. To access the history section you can either select history from the bottom left drop down menu or use the hotkey:

ctrl + 2 (Linux/Windows) / cmd + 2 (Mac)


In the Settings section you can set the number of commands to remember before previously executed commands will overwrite older commands.