How to Use/Enable Multiple Queries with Search Engines?

I want to enable these two options when customizing search engines:
```
gm: https://www.google.com/maps/search/?api=1&query=%s GMaps Location 
gM: https://www.google.com/maps/dir/?api=1&origin=%s1&destination=%s2 GMaps Route
```

How can I make the second option work? Any insight would be appreciated.