Filter on Route Tab
The suggestion is a simple filter in the route tab. Currently we can choose our filter by "Origin/From", and I think that if add another options will do a filter work better... Per Exemple: Add in the filter option for Choose and show the routes operating by A/C model or A/C registration... I think that it turns more easy to modificate our routes in this tab
Context 
Can Be more easy to do this modifications (Imagine a tab in the company that have more than 100 routes?