diff --git a/nip29/group.go b/nip29/group.go
index c256c7d..7602f93 100644
--- a/nip29/group.go
+++ b/nip29/group.go
@@ -66,6 +66,12 @@ type Group struct {
 	// indicates which event kinds this group supports
 	SupportedKinds []nostr.Kind
 
+	// arbitrary string indicating the parent group
+	Parent string
+
+	// ordered list of identifiers of child groups
+	Children []string
+
 	Roles       []*Role
 	InviteCodes []string
 
@@ -206,6 +212,14 @@ func (group Group) ToMetadataEvent() nostr.Event {
 		evt.Tags = append(evt.Tags, tag)
 	}
 
+	if group.Parent != "" {
+		evt.Tags = append(evt.Tags, nostr.Tag{"parent", group.Parent})
+	}
+
+	for _, child := range group.Children {
+		evt.Tags = append(evt.Tags, nostr.Tag{"child", child})
+	}
+
 	return evt
 }
 
@@ -327,6 +341,10 @@ func (group *Group) MergeInMetadataEvent(evt *nostr.Event) error {
 						group.About = tag[1]
 					case "picture":
 						group.Picture = tag[1]
+					case "parent":
+						group.Parent = tag[1]
+					case "child":
+						group.Children = append(group.Children, tag[1])
 					}
 				}
 			}
diff --git a/nip29/moderation_actions.go b/nip29/moderation_actions.go
index 014fbdf..39bdeab 100644
--- a/nip29/moderation_actions.go
+++ b/nip29/moderation_actions.go
@@ -79,40 +79,23 @@ var moderationActionFactories = map[nostr.Kind]func(nostr.Event) (Action, error)
 	nostr.KindSimpleGroupEditMetadata: func(evt nostr.Event) (Action, error) {
 		ok := false
 		edit := EditMetadata{When: evt.CreatedAt}
-		y := true
-		n := false
-
-		hasName := false
-
-		// DEPRECATED: remove all the fields not tagged with Replace = true eventually
-		// edit-metadata to become a PUT rather than a PATCH
 
 		for _, tag := range evt.Tags {
 			if len(tag) >= 1 {
 				switch tag[0] {
 				case "name":
 					if len(tag) >= 2 {
-						edit.NameValue = &tag[1]
-						if ok {
-							edit.Replace = true
-						}
+						edit.Group.Name = tag[1]
 						ok = true
-						hasName = true
 					}
 				case "picture":
 					if len(tag) >= 2 {
-						edit.PictureValue = &tag[1]
-						if hasName {
-							edit.Replace = true
-						}
+						edit.Group.Picture = tag[1]
 						ok = true
 					}
 				case "about":
 					if len(tag) >= 2 {
-						edit.AboutValue = &tag[1]
-						if hasName {
-							edit.Replace = true
-						}
+						edit.Group.About = tag[1]
 						ok = true
 					}
 				case "supported_kinds":
@@ -124,54 +107,33 @@ var moderationActionFactories = map[nostr.Kind]func(nostr.Event) (Action, error)
 							kinds = append(kinds, nostr.Kind(kind))
 						}
 					}
-					edit.SupportedKindsValue = &kinds
-					edit.Replace = true
-				case "closed":
-					edit.ClosedValue = &y
-					if hasName {
-						edit.Replace = true
-					}
+					edit.Group.SupportedKinds = kinds
 					ok = true
-				case "open":
-					edit.ClosedValue = &n
+				case "closed":
+					edit.Group.Closed = true
 					ok = true
 				case "restricted":
-					edit.RestrictedValue = &y
-					if hasName {
-						edit.Replace = true
-					}
-					ok = true
-				case "unrestricted":
-					edit.RestrictedValue = &n
+					edit.Group.Restricted = true
 					ok = true
 				case "hidden":
-					edit.HiddenValue = &y
-					if hasName {
-						edit.Replace = true
-					}
-					ok = true
-				case "visible":
-					edit.HiddenValue = &n
+					edit.Group.Hidden = true
 					ok = true
 				case "private":
-					edit.PrivateValue = &y
-					if hasName {
-						edit.Replace = true
+					edit.Group.Private = true
+					ok = true
+				case "parent":
+					if len(tag) >= 2 {
+						edit.Group.Parent = tag[1]
+						ok = true
 					}
-					ok = true
-				case "public":
-					edit.PrivateValue = &n
-					ok = true
 				case "livekit":
-					edit.LiveKitValue = &y
-					edit.Replace = true
-					ok = true
-				case "no-livekit":
-					edit.LiveKitValue = &n
-					ok = true
-				case "no-text":
-					edit.SupportedKindsValue = nil
+					edit.Group.LiveKit = true
 					ok = true
+				case "child":
+					if len(tag) >= 2 {
+						edit.Group.Children = append(edit.Group.Children, tag[1])
+						ok = true
+					}
 				}
 			}
 		}
@@ -280,63 +242,26 @@ func (a RemoveUser) Apply(group *Group) {
 }
 
 type EditMetadata struct {
-	NameValue           *string
-	PictureValue        *string
-	AboutValue          *string
-	RestrictedValue     *bool
-	ClosedValue         *bool
-	HiddenValue         *bool
-	PrivateValue        *bool
-	LiveKitValue        *bool
-	SupportedKindsValue *[]nostr.Kind
+	Group
 
-	Replace bool
-	When    nostr.Timestamp
+	When nostr.Timestamp
 }
 
 func (_ EditMetadata) Name() string { return "edit-metadata" }
 func (a EditMetadata) Apply(group *Group) {
 	group.LastMetadataUpdate = a.When
 
-	if a.Replace {
-		group.Name = ""
-		group.Picture = ""
-		group.About = ""
-		group.Restricted = false
-		group.Closed = false
-		group.Hidden = false
-		group.Private = false
-		group.LiveKit = false
-		group.SupportedKinds = nil
-	}
-
-	if a.NameValue != nil {
-		group.Name = *a.NameValue
-	}
-	if a.PictureValue != nil {
-		group.Picture = *a.PictureValue
-	}
-	if a.AboutValue != nil {
-		group.About = *a.AboutValue
-	}
-	if a.RestrictedValue != nil {
-		group.Restricted = *a.RestrictedValue
-	}
-	if a.ClosedValue != nil {
-		group.Closed = *a.ClosedValue
-	}
-	if a.HiddenValue != nil {
-		group.Hidden = *a.HiddenValue
-	}
-	if a.PrivateValue != nil {
-		group.Private = *a.PrivateValue
-	}
-	if a.LiveKitValue != nil {
-		group.LiveKit = *a.LiveKitValue
-	}
-	if a.SupportedKindsValue != nil {
-		group.SupportedKinds = *a.SupportedKindsValue
-	}
+	group.Name = a.Group.Name
+	group.Picture = a.Group.Picture
+	group.About = a.Group.About
+	group.Restricted = a.Group.Restricted
+	group.Closed = a.Group.Closed
+	group.Hidden = a.Group.Hidden
+	group.Private = a.Group.Private
+	group.LiveKit = a.Group.LiveKit
+	group.SupportedKinds = a.Group.SupportedKinds
+	group.Parent = a.Group.Parent
+	group.Children = a.Group.Children
 }
 
 type CreateGroup struct {