Within the F11 menu there is an options menu with a long drop down, you can select from a variety of sources to help you find further information about your current session. Be careful with these options because some of them might cause your client to freeze and continuously crash upon launch. If this happens you can set the offending option to false in C:\Users\Username\Zomboid\debug-options.init.
[ ] Set-ZomboidDebug -- Set one or more debug options by parsing the ini file
[ ] Reset-ZomboidDebug or Initialize-ZomboidDebug -- Reset options to default
[ ] Enable-ZomboidDebugOption -- Enable options by name. Basically an alias over Set-ZomboidDebug
[ ] Disable-ZomboidDebugOption -- Disable options by name. Another wrapper for Set-ZomboidDebug
From the Debug Mode wiki article:
Set-ZomboidDebug-- Set one or more debug options by parsing the ini fileReset-ZomboidDebugorInitialize-ZomboidDebug-- Reset options to defaultEnable-ZomboidDebugOption-- Enable options by name. Basically an alias overSet-ZomboidDebugDisable-ZomboidDebugOption-- Disable options by name. Another wrapper forSet-ZomboidDebug