diff --git a/sync.cc b/sync.cc
index 1761677..cda34cd 100644
--- a/sync.cc
+++ b/sync.cc
@@ -2,6 +2,80 @@
 #include "sync.hh"
 
 
+void T_SyncManager::makeUI( )
+{
+	auto const& dspSize( ImGui::GetIO( ).DisplaySize );
+
+	if ( wOverrides ) {
+		ImGui::SetNextWindowSize( ImVec2( 300 , dspSize.y - 300 ) ,
+				ImGuiSetCond_Once );
+		ImGui::SetNextWindowPos( ImVec2( 0 , 150 ) ,
+				ImGuiSetCond_Once );
+		ImGui::Begin( "Input overrides" );
+		displayOvSections( uiRoot , true );
+		ImGui::End( );
+	}
+	if ( wCurves ) {
+		ImGui::SetNextWindowSize( ImVec2( dspSize.x , 150 ) ,
+				ImGuiSetCond_Once );
+		ImGui::SetNextWindowPos( ImVec2( 0 , dspSize.y - 150 ) ,
+				ImGuiSetCond_Once );
+		ImGui::Begin( "Curve editor" );
+		// XXX contents
+		ImGui::End( );
+	}
+}
+
+void T_SyncManager::displayOvSections(
+		__rw__ T_SyncUISections& sections ,
+		__rd__ const bool topLevel )
+{
+	for ( auto& s : sections ) {
+		const bool display( topLevel
+				? ImGui::CollapsingHeader( s->title.c_str( ) )
+				: ImGui::TreeNode( s->title.c_str( ) ) );
+		if ( !display ) {
+			continue;
+		}
+		displayOvSections( s->subsections );
+		if ( s->subsections.size( ) && s->overrides.size( ) ) {
+			ImGui::Separator( );
+		}
+		displayOvControls( s->overrides );
+		if ( !topLevel ) {
+			ImGui::TreePop( );
+		}
+	}
+}
+
+void T_SyncManager::displayOvControls(
+		__rw__ T_SyncUIOverrides& overrides )
+{
+	for ( auto& o : overrides ) {
+		// XXX enable override checkbox should be selected and disabled
+		// if there is no curve
+		const bool changed( ImGui::Checkbox( "" , &o->enabled ) );
+		if ( changed ) {
+			// XXX mark the inputs as coming from the UI / the curves
+		}
+		ImGui::SameLine( );
+
+		switch ( o->type ) {
+			case T_SyncUIOverride::FLOAT:
+			case T_SyncUIOverride::VEC2:
+			case T_SyncUIOverride::VEC3:
+			case T_SyncUIOverride::VEC4:
+			case T_SyncUIOverride::INT:
+			case T_SyncUIOverride::COLOR:
+			case T_SyncUIOverride::COLOR_GRADING:
+			case T_SyncUIOverride::CAMERA:
+				break;
+		}
+	}
+}
+
+/*============================================================================*/
+
 const T_SyncVariable T_SyncData::MissingVariable_{ };
 
 T_SyncData::T_SyncData( )
diff --git a/sync.hh b/sync.hh
index 8e7c6ef..fda3cea 100644
--- a/sync.hh
+++ b/sync.hh
@@ -29,6 +29,7 @@ struct T_SyncUIOverride
 		COLOR , COLOR_GRADING , CAMERA
 	};
 
+	std::string title;
 	E_Type type;
 	std::vector< std::string > inputs;
 	bool enabled;
@@ -81,6 +82,7 @@ struct T_SyncCurveCache
 	T_SyncCurve const* variable;
 	std::vector< T_SegRef > segRefs;
 	std::vector< float > segStarts;
+	uint32_t curPos;
 
 	T_SyncCurveCache(
 		__rd__ T_SyncCurve const* const variable ,
@@ -127,6 +129,15 @@ struct T_SyncManager
 	T_SyncUISections uiRoot;
 
 	void makeUI( );
+	bool wOverrides = false;
+	bool wCurves = false;
+
+    private:
+	void displayOvSections(
+			__rw__ T_SyncUISections& sections ,
+			__rd__ const bool topLevel = false );
+	void displayOvControls(
+			__rw__ T_SyncUIOverrides& overrides );
 };
 
 /*============================================================================*/