While booking on IRCTC or through IRCTC Agent, Break Journey is not booked.
At CRCs, yes you can book ticket with Break Journey and that sometines depends upon the Reservation Official also.
Fill up a form with 2955, 2979 or so for Ratlan to Jammu, Reservation up to Jaipur. In the lower section of the Reservation Form (Return/Onward Journey) fill up train number (2413) from Jaipur to Jammu with maximum two clear days Break (you will be allowed TWO CLEAR DAYS as you would have completed a journey of 506 Kms)....
more... At one more place, you can further Break the Journey for Two Clear Days again as your ticket would be for more than 1000 Kms.