Wipe Free Space?

hi – I downloaded Comoodo System Utilities 4.0 hoping that it would have a “Wipe Free Space” option, similar to the one in Piriform’s CC Ceaner. (https://www.piriform.com/docs/ccleaner/using-ccleaner/wiping-free-disk-space)

Given all the various Shredding and drive-wiping options, it seems an obvious thing to add. It seems a no-brainer for a product that is all about protecting privacy do so in a secure fashion.