so many years passed, things not changed. last month, I tried to contact Mentor support and wasted times to explain much for this feature's importance. Today, I got the reply from Mentor:
Hi Yanfeng,
Curved trace patterns only work when you are doing interactive routing on single nets or differential pairs. Please refer to the ‘Routing Curved Trace Patterns’ section on p115 of the ‘PCB Routing Solutions Guide’:
Did Mentor guy understand the quesiton because I have clearly told him:
I just mean route two normal nets with automatic arcs for escaping out BGA stager area , where you can't escaped it out in indivdual. Currently, VX.1 only support differ pair only with arc traces, but not for normal two nets together. As we known, Intel's new skylate platform requests you have to route two traces out of BGA area using arc traces. Without this capability, you have to spend much much times to escape it out of BGA area using special manual draws. I hope you help to forward this to ExpeditonPCB corp camp because We have request this capabilty more than two years
So If you found some bugs or lacks of feature, never told Mentor because it's full of time-waste.
yanfeng
