Skipped Files Should be Removed from Available Space

Was recently copying an 18 GB folder from desktop to a 32 GB flash drive, which already had probably 15 GB used. Of the 18 GB to copy, 12 GB could be skipped because they were already on the flash drive, leaving about 4 GB to copy. Instead, copy wouldn’t start because “2.4 GB space needed” to complete the job, even though I selected Skip existing files.

Feature Request: Please have TeraCopy remove skipped files from the space required for copy.