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Rules for Multi Scenario Modelling

When you are creating and editing models using the Multi Scenario modelling option, the following rules apply with respect to inheritance of common properties, and propagation of editing operations. There are THREE levels:

  1. All Groups/Scenarios
  2. Individual Group
  3. Master Scenario + Additional Scenarios


All changes made to a Master Scenario are automatically propagated to all other scenarios in the same group. Therefore you should only edit a Master Scenario when you wish to propagate the changes to all other scenarios in the group.


The following properties are shared by ALL groups and scenarios.


The following properties are shared by all scenarios in a given group.


Individual scenarios can be edited independently of each other, with the exception of the shared properties of groups/scenarios listed above, and the Master Scenario.

  • If you wish to propagate edits from one scenario to all other scenarios in a group, edit the Master Scenario.
  • If you wish to propagate edits from one scenario to selected scenarios in a group, then use the Link Scenarios option. This will propagate all applicable editing options to only the selected scenarios in a group.
The following editing options are not propagated between scenarios:
  • All mesh operations (mesh/discretize, increase density, etc.)
  • Addition/deletion of groundwater boundary conditions
  • Display settings (these can be set to apply to all scenarios in the display options dialog or the sidebar)

These options are NOT synchronized between scenarios in the same group, even when Link Scenarios is turned on, and will have to be applied individually to each scenario.


    The following properties are material properties that can be different from one scenario to the next.

    • Statistics for probabilistic/sensitivity analysis
    • All water options (e.g. Groundwater method selection in Project Settings > Groundwater, water table assignment, Hu option, etc.)
    • For material types Anisotropic Linear and Snowden Modified Anisotropic Linear, if Anisotropy Definition is defined as Surface, a different Anisotropic Surface can be selected in each scenario.
    • For material type Generalized Hoek-Brown, if defined by "GSI, mi, D", and "Parameters vary with depth" is checked on, the D Parameter variation details in the Define dialog can be different in each scenario.
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