How can I separate Enter and Shift+Enter behavior in a textfield?

Hi everyone,

I'm developing a chat web application using FlutterFlow.
I have implemented a multiline text field for user input with an "On Submit" action.
Now, Users will execute this action by pressing either "Enter" or "Shift + Enter".
However, I'd like to modify the functionality so that only "Enter" triggers the action, while "Shift + Enter" inserts a new line. Is there a way to achieve this in FlutterFlow?

Any suggestions or guidance would be greatly appreciated.