DQL Dashboard Tiles and Management Zones (Variables?)

[DynatraceDan]

Hello, I am attempting to tie a DQL dashboard to a management zone in my environment using a variable.

The variable I created is:

fetch dt.entity.host
| fields managementZones
| fieldsAdd managementZones,"xx"

Where xx is the name of our management zone we want the tiles to reflect.  

I would like to apply this Variable1 now in a simple tile showing hosts where the current DQL is:

fetch dt.entity.host
| fieldsAdd isMonitoringCandidate
| filterOut isMonitoringCandidate == true
| summarize count(), alias: hosts

What DQL would I add to have my new variable referenced here so I can select management zone "xx" via the Variable1 that I have created?  

Any help is much appreciated!

Thank you!

D

[DynatraceDan]

I meant, What DQL would I add to have my tile to use my variable referenced here so I can select management zone "xx" via the Variable1 that I have created?