How to add text without clearing the text in Katalon Recorder?

If you are looking to add text2 to the end of text1 “Hello text 1Hello this is the 2nd input text” then sendKeys will do that if the field permits.

Test Case 1:
|sendKeys|id=inputNotes|Hello text 1|

Test Case 2:
|sendKeys|id=inputNotes|Hello this is the 2nd input text|