RE: How to Enable Bing Maps
Hi Ehodapp,
To enable the Bing Maps, follow the below steps to.
1) Login to Dynamics 365 instance and go to Resource Scheduling area and then Administration.

2) Click on Scheduling Parameters.

3) Set the value connect to Maps to Yes.

4) Once the setting is enabled, Bing map is available in Schedule Board.

If there is anything different from steps I provided, such as "Scheduling Parameters" can not be found, please provide your screenshots.
If it goes well, this way can solve your problem.
The administration page you find is to turn Bing Maps on or off for your organization, not enable Bing Maps for Field Service. You can refer to this article.
Hope this helps.
Best Regards,
Lu Hao