Global component policies across sites

Requesting solution/approach for using and maintaining global component policies across multiple sites. Current project using common components across sites and policies are maintained in below path

/conf/global/settings/wcm/policies/…button

The requirement is to use the same button component style policy for the project specific template placed under

/conf/myproject/settings/wcm/template/my-template/

Is there any way to map the common policies for site specific templates without duplicating and maintaining the same policy under project /conf so that we can see style policy icon in editor?

Cross conf reference is possible ?

Thanks in advance!