Question in using citrix

I’m chen ,when do the practise “lesson 7”,i don’t understand what ‘Occuence’____represent for in the screen Scraping after Click Test.clicked
Can anyone solve about.

Hello there,
Occurrence - If the string in the Text field appears more than once in the indicated UI element, specify here the number of the occurrence that you want to click. For example, if the string appears 4 times and you want to click the first occurrence, write 1 in this field. The default value is 1.