Yes, you can incorporate a constraint area in the footprint and even apply the appropriate shape properties. Once you place the footprint on your layout, you can then edit those properties if necessary. Jim S. Wages / SR. PCB Layout Designer: Cary, NC - H: 919-466-1596 Cell: 919-484-2963 -----Original Message----- From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Ron Mora Sent: Monday, August 20, 2007 2:05 PM To: icu-pcb-forum@xxxxxxxxxxxxx; icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: rooms and areas (beginner with performance) Dave, Can you assign the constraint area at the part level in the library? Ron Mora At 10:16 AM 8/20/2007 -0700, Dave Mattice wrote: I have always used a Constraint Area for this. And assigned the appropriate Spacing and Physical constraint sets. Only trouble is that the constraint does not follow The component when moving. You can create a Alternate and lock it in place that way. dm _____ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of sjchar3@xxxxxxxxxxxx Sent: Monday, August 20, 2007 9:21 AM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] rooms and areas (beginner with performance) group: I have a BGA and I would like to route 4 mil trace between pins, and only a certain via would be used in this location. The rest of the board is 8 mil traces. Do i set up a room, area or region? Thanks Austin for you earlier reply. Thanks again. _____ Check <http://pr.atwola.com/promoclk/100122638x1081283466x1074645346/aol?redir =http%3A%2F%2Fwww%2Eaim%2Ecom%2Ffun%2Fmail%2F> Out the new free AIM(R) Mail -- Unlimited storage and industry-leading spam and email virus protection.