Select a model(s) to modify (SHIFT+CLICK or CTRL+CLICK for multiple selection), then click either New or Duplicate.

Type a more descriptive name for the model.

Select from the following:
Zero offset
Multi offset
Derived based on a mathematical operation performed on two other models in the current synthetic.

Select the mathematical transformation used to explain the data.

Type the display amplitude of the trace data.

Select whether to display simulated first order multiples alongside primary reflections, or to just display multiples and not the primary reflection. First order multiples are the first reflection of a primary reflection.

Type the maximum percent for the reflection coefficient below which multiples are not shown. GeoSyn calculates the maximum reflection coefficient in the model, uses a percentage of that, and ignores all reflection coefficients less than that.

Type a value for the automatic gain control.

Select the Apply check box and then click Edit to display the Noise Parameters dialog box, where you apply noise type.

Select Dix NMO for a preliminary fast view, or Ray trace for improved accuracy using a full Snell's law ray-tracing algorithm.

Select whether sampling frequency is based on time (constant time) or depth (constant depth) and type an increment.

Set the threshold within which reflecting seismic rays will be included in a trace. A larger bin number will include more rays but the resulting trace will be less accurate.

Type a value that matches the common depth point interval of the seismic to which the model will be compared. CDP is half of the surface offset.

Type the total number of traces to display in the model.

Type the distance from the source at which the nearest receiver appears. The distance to other receivers is calculated using this value, the CDP interval, and the Num traces values above.

Select whether to show individual traces for each receiver and whether to sum all the traces into one trace displayed to the left of the model. Click Edit to display the Sum Options dialog box where you define groups of traces (near, middle, far) and then do mathematical operations between the three groups, which enables you to filter or enhance certain portions of the offset trace. For example, you might subtract the far traces from the near traces and then multiple the result by the far traces to enhance the far offset amplitude.

Simulate the normal move-out stretch.

Apply an inside or outside angle outside of which data won't be included in the trace. The incident angle is calculated at each sample. The mute line is drawn on your synthetic to show where data is being cutoff. Select the color in which this line is drawn using the Mute color drop-down list.