Search and Replace:

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 scrap item 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.

NOTE:  You can cancel a search by holding down the Command key and hitting the '.' key.