You can search through any one note or through notes in all categories. You can also define a replacement string to use for replacement.
The check boxes are:
1. Ignore case:
Checked, the search will not be case sensitive
2. Wrap around:
Checked, the search will continue at the beginning of the note if a match is not found after reaching the end... (if the Search All check box is checked, the search will wrap to the first note upon not finding a match in the last note of the last category.
3. Search all:
Checked, the search will check all notes in all categories (this option is ignored if searching comments, as all notes will be searched regardless).
The radio buttons are:
1. Search Contents:
If hilighted, the search will be within the text of the note(s).
2. Search Comments:
If hilighted, the search will be within the text of any comments of each note (these comments can be added or edited from with EZNote or using the Get Info command in the Finder).
NOTE: You can cancel a search by holding down the Command key and hitting the '.' key.