An electronic device displays a first row of graphical representations, each corresponding to a context element of a route sequence map of a first user. The route sequence map includes context elements organized in a hierarchical structure, each context element having one or more property values specifying an action to be performed by the server or a link to one or more child context elements in the hierarchical structure. In response to a selection of a first graphical representation from the first row, a first message having at least a first identifier (ID) of the first graphical representation is transmitted to the server. A second message is received from the server in response to the first message, the second message including data identifying a second row of context elements of the route sequence map. The second row is displayed as a child row to the first row.