New Horizon Experience. This article describes the New Horizon Experience, which is available now. As of September 28, 2026, New Horizon is the default starting point on a computer or laptop. In the Horizon WebRef mobile apps for Android and iOS, New Horizon is already what you see. If you still have the older layout, choose Switch to New Horizon from the banner or your account menu. You can switch back to Legacy Horizon from that menu any time during the transition.
This article is for assignors and other schedulers who already have one or more Contact Groups. It covers how to use a group while you assign people to a game, how to start every assign session with the same group, and how private sharing works. Creating groups and adding members is covered in How to create Contact Groups and How to add people to contact groups. For the full assign walkthrough, see How to assign officials to a game.
Filter Eligible and Ineligible by Contact Group
On the Master Game Schedule, open a game with Assign. The assign window lists people under Eligible or Ineligible. When your organization has contact groups you can use, a Contact Group control appears in that window toolbar next to Search and Sort.
Choose No group filter to see everyone who matches the Eligible or Ineligible list. Choose a named group to narrow that same list to people in the group. The Eligible and Ineligible counts update for the group you selected, so you can scan a smaller crew without leaving Assign.
On a computer, the same control sits in the wider toolbar with the label Contact Group.
Contact Group only filters who appears in the list. It does not change who is eligible for the game. Someone can be in your group and still land on Ineligible when a rank, availability, block list, or other rule misses. Use Eligible and Ineligible the same way you always do after you pick a group.
Set a default scheduling group
If you usually assign from the same contact group, save it as your default so Assign opens with that group already selected.
Open Personal Profile, then Preferences. Under Scheduling preferences, choose Default scheduling group. Pick All Officials (or your organization people label) when you want every session to start with no group filter, or pick a named group such as GROUP: Weekend Crew. Horizon saves the choice as you go.
On a computer, Preferences and Scheduling preferences use the wider layout.
You can still change Contact Group inside Assign for that session. The default only sets the starting choice. If you need a new group from this screen, use the plus control next to Default scheduling group, or create the group under Contact Groups first.
Contact Group privacy and sharing
Contact Groups belong to the person who created them. They are not owned or managed by the officiating organization. Other assignors cannot see, use, or filter with your group until you share it.
Open Contact Groups from Users, then open the group to edit. Under sharing, use Edit Permission for people who may change the group, and Read-Only Permission for people who may view and use the group without editing it. Save Changes when the list looks right. You may grant Edit Permission to at most 15 people.
On a computer, the same fields sit in the Edit Group side panel.
After you share with Read-Only Permission, those people can choose the group in Assign and set it as their default scheduling group. Edit Permission also lets them change members and sharing.
If you still see the older layout
On a computer or laptop, the older legacy layout appears only if you switched back to Legacy Horizon. Choose Switch to New Horizon from the banner or your account menu to return. In that older layout, the assign window still offers a group filter after you create contact groups, and the default group still lives under Personal Profile Preferences. Contact Groups opens from the Members Directory toolbar. Menu names may sit under Administrative Forms or the classic side menu instead of the New Horizon navigation. The jobs you can do stay the same even when the chrome looks different.