The solution is simple to use computer name and user name in Quick Text Paste as predefined text snippets!
Please use the place holder %computer_name% and %user_name%
I am work on the computer: %computer_name% as user: %user_name%
Please use always ... the latest version of QuickTextPaste for Windows for free ;-)
► paste images via image path to an active program via clipboard!
► insert symbols from unicode character set in Facebook!
|(Image-1) computer name and user name in Quick Text Paste!|