Extracted from the Forum’s Rules/FAQ:
Manager advances very quickly, simplifying and adding features and capabilities. Sometimes, bugs occur with new releases. But these are usually fixed rapidly, often within minutes. So if you encounter a problem with the desktop or server editions, update Manager, even if you recently did. (The cloud edition is always up to date.) You can check the latest version at https://www.manager.io/desktop/download/ .
So you should first update Manager as you are 24 versions behind.
You can add or remove columns by using the option Edit columns:
