Without creating separate Appveyor projects, can I achieve the following using a single .yml configuration:

I have two sets of CI tests, one runs on pull request and the other scheduled to run weekly on the master branch. They share the common "init" and "install" settings but have different "test_script" and "notifications". I would like to do conditional build configurations based on "APPVEYOR_SCHEDULED_BUILD" environment variable being true or false, something like this:

build: ...
platform: ...
init: ...
install: ...
for:
- on:
    - APPVEYOR_SCHEDULED_BUILD: false
  test_script: ...
  notifications: ...
- on:
    - APPVEYOR_SCHEDULED_BUILD: true
  test_script: ...
  notifications: ...