Multiple Backsights for Survey Observation

Hi All,

In using OpenRoads Survey function,  We have imported gsi with all observation points; and also control file with control point (TKT03, TKT031; TKT04). TKT031 is setup and TKT03; TKT04 are backsights.

In observation, points: 203, 204 are observation for TKT04; and points: 1,5,6 are for TKT03.

How to add those observation as backsights, in order to do survey adjustement.

Thanks.

b.zip