Indeed, the old desktop version was a much more powerful (if less pretty) tool - especially when seeking out a comprehensive list of codeshares that OneWorld carriers market on a given sector. [All the more important now under AA's new earning structure].
The new (map-based) OneWorld timetable seems quite arbitrary and incomplete when providing routings (if it shows them at all!), especially when it comes to displaying codeshare options. And with the old AA PDF time-table also now retired, I'm at a loss for how I can maximize AA marketed sectors in my next RTW.
Is anyone here aware of other tools one could use to fill this gap?