Switching between execution engines causes the "Options" panel to disappear as shown below.

Also, the string "Optimize Constraints to Select Operations" appears in two classes: EvlModuleConfiguration and EvlAdvancedOptionsTab which suggests that there's a missed opportunity for reuse. This is also suggested by the fact that EvlAdvancedOptionsTab doesn't extend AbstractAdvancedConfigurationTab like EglAdvancedConfigurationTab does but instead extends the more basic AbstractLaunchConfigurationTab class.