Adding Text Area/ Text box in custom connector

Hi All,

I am creating my own custom connector. Whenever i write the line "shared My.Databases = (DSN as text, optional SQL as text)" , it always creates a text field to take input for SQL and DSN. Is it possible change that text field to text area/ text box where i can enter multiple lines? If it can be done, then can anyone share any documentation link or github link on how to do that.

Thanks in advance.