Scenario never gets out of 'Editing' state to make changes to the scenario as there were few items that needs editing
From Ca ARCserve RHA Manager when you see a scenario in 'Editing' state you wont be able to change scenario
-- Close the Ca ARCserve RHA Manager screen.
-- Close the Overview page (webpage from where you launched 'Scenario management')
-- Restart the service called 'Ca ARCserve RHA Control service'
-- Login to Overview page and click 'Scenario management' and launch RHA Manager and you should be able to edit the scenarios