Caddcop I looked into your suggestion and didn't find anything, so I called Bentley and this is what they had to say.
"Unfortunately, the native EXTARC control code has not been moved forward to the OpenRoads Survey functionality so there is not a way to create a circle from 3 points. The only way to place a circle in survey is by using a radius or diameter to place a circle around a point. This has been logged as an enhancement in the past but it has not been implemented into the OpenRoads Survey functionality.
Enhancement 162368
We have tried testing other alternatives but I have not been able to come up with any solution to place a circle between 3 points in the OpenRoads Survey Field Book."
Thanks,
Gerald
"Unfortunately, the native EXTARC control code has not been moved forward to the OpenRoads Survey functionality so there is not a way to create a circle from 3 points. The only way to place a circle in survey is by using a radius or diameter to place a circle around a point. This has been logged as an enhancement in the past but it has not been implemented into the OpenRoads Survey functionality.
Enhancement 162368
We have tried testing other alternatives but I have not been able to come up with any solution to place a circle between 3 points in the OpenRoads Survey Field Book."
Thanks,
Gerald