"Accessibility enabled" setting removes Regex Markup button in Event RulesDescriptionAfter enabling the "Accessibility enabled" option for your personal user settings you observe that the Regex Markup button is now missing from the Event Rule editor. This is expected behavior.Steps to Reproduce Log in to a London instanceNavigate to Event RulesSelect the "AWS LB binding" ruleGo to "Transform and Compose Alert Output"Select a Regex expression from the "Expressions" sectionNote that Regex Markup button is present: Open the User Settings (top-right cogwheel), enable "Accessibility enabled"Reload the pageRepeat steps 2 to 6, note that the markup button is missingWorkaroundDisable the "Accessibility enabled" option in the user settingsRelated Problem: PRB1307904