Open the collapsed mobile nav menu by clicking its hamburger button.
Examples
When I open the mobile menu
When I open the mobile navigation menu
When we open the mobile menu
When we open the mobile navigation menu
And open the mobile menu
Pattern
When(/^(I |we )*open the mobile( navigation)? menu$/, …)
Part of @webship-js/webflow-steps (github.com/webship/webflow-steps), a step pack for Webship-js 2.0.x.