Open the configuration dialog of a block of a region of the layout.
Examples
When I configure the "Syndicate" block of the "Sidebar" region
When I configure the "Search form" block of the "Header" region
When we configure the "Breadcrumb" block of the "Top" region
And I configure the "Feeds" block of the "Footer" region
When configure the "Header block" block of the "Header" region
Pattern
When(/^(I |we )*configure the "([^"]*)" block of the "([^"]*)" region$/, …)
Part of @webship-js/backdrop-cms-steps (github.com/webship/backdrop-cms-steps), a step pack for Webship-js 2.0.x.