Clicking a step's reaction node icon
in the plan opens the step options menu with View All Alternatives, View Evidence, and Exclude This Step.
View All Alternatives
Select View All Alternatives to display all alternatives for the plan step.
Alternatives are grouped together based on the bond disconnected or formed in a transformation. The currently selected step is shaded and displays at the top of the list.
View Evidence
Select View Evidence to display the reaction results and related references supporting the plan step.
Exclude This Step
Select Exclude This Step to remove it from the plan, which will automatically refresh after you select this option. You can also view and recover the excluded step.