In the updated 1802 TP, we now have an option to create Edge policies.
In Assets and Compliance, under Compliance Settings, there is an option for Microsoft Edge Browser Profiles
Highlight that and choose from the Menu (or right click) to Create Microsoft Edge profile
In the Create Microsoft Edge Browser Policy wizard, name your profile/policy just as an example below. You can create multiple profiles to target different collections like any other deployment.
In the next screen, choose the configuration needed based on your corporate policies.
Once done, select next and choose the OS which will always be Windows 10 but you can target between x32 and x64.
Once all done, from the menu bar or right click to deploy the policy to a collection.