Input content in text box B based on content input of text box A

Hello,

Is there a way to dynamically input content from one text box to another? By setting the default with a specific field ID and unique name?

Thank you,

Lauren Sabra

It is possible to update the contents of another field based on input in a field by using an update form field condition:

https://www.jotform.com/help/268-How-to-Insert-Text-or-Mathematical-Calculation-into-a-Field-Using-Conditional-Logic

Hello, thank you, I figured out how to do this using the default field and the unique name.

however- I have 3 field ID's that make up 1 unique name. 

Is there a way for me to specify the unique field I want?

ie. I am using {studentFirst240}

But {studentFirst240} combines #first_3, #middle_3, #last_3

I want to specifically get first_3 and last_3 inside that tag somehow.

Unfortunately, you cannot update a field with the First name value only using Full Name field. What you can do is to just separately add two text boxes for First Name and Last Name so you can get the value for each field.