Hi Chintan. It's possible, but it is a little complicated (probably not if you have QRules! lol). Add an extra column to your list -- no need to display it in your form. Make it an Integer datatype with a default value of 0, and add a rule to this field to set Project Name2 to Project Name. This rule will go off in each line when the value of the field changes. Set the field's value to its value + 1 in another rule to start the copy. Make sure that you initiate this rule outside of the repeating table, or it will only work in one line. See the attached form template if you get stuck.
Hope that this helps!
Qwerty