This option prompts for the desired file attributes (i.e., Read-only, Hidden, etc) and selects all files having those attributes.
Attributes These check boxes control which file attributes will be used for file selection.
Not. Use this option to select files without the checked attributes.
Read-only. Use this option to set or clear the "Read only" file attribute.
Hidden. Use this option to set or clear the "Hidden" file attribute.
System. Use this option to set or clear the "System" file attribute.
Append to existing selection. Check this option to have ThumbsPlus retain the exisitng selection and add any attribute selected files.