diff --git a/src/modules/annotate/mod.rs b/src/modules/annotate/mod.rs
index 6ff2016ae..c9e783fc2 100644
--- a/src/modules/annotate/mod.rs
+++ b/src/modules/annotate/mod.rs
@@ -42,7 +42,7 @@ impl CadModule for AnnotateModule {
     }
 
     fn ribbon_groups(&self) -> &[RibbonGroup] {
-        use crate::modules::draw::draw::{revcloud, wipeout};
+        use crate::modules::draw::draw::{centerline, dimcenter, revcloud, wipeout};
 
         static GROUPS: std::sync::OnceLock<Vec<RibbonGroup>> = std::sync::OnceLock::new();
         GROUPS.get_or_init(|| {
@@ -148,6 +148,44 @@ impl CadModule for AnnotateModule {
                         },
                     ],
                 },
+                // ── Centerlines ───────────────────────────────────────────────
+                RibbonGroup {
+                    title: "Centerlines",
+                    tools: vec![
+                        RibbonItem::LargeTool(dimcenter::tool()),
+                        RibbonItem::LargeTool(centerline::tool()),
+                        RibbonItem::Dropdown {
+                            id: "ANNOTATE_CENTER_ASSOCIATIVITY",
+                            icon: crate::modules::IconKind::Svg(include_bytes!(
+                                "../../../assets/icons/line.svg"
+                            )),
+                            items: vec![
+                                (
+                                    "CENTERREASSOCIATE",
+                                    "Reassociate Center Object",
+                                    crate::modules::IconKind::Svg(include_bytes!(
+                                        "../../../assets/icons/line.svg"
+                                    )),
+                                ),
+                                (
+                                    "CENTERDISASSOCIATE",
+                                    "Disassociate Center Object",
+                                    crate::modules::IconKind::Svg(include_bytes!(
+                                        "../../../assets/icons/line.svg"
+                                    )),
+                                ),
+                                (
+                                    "CENTERRESET",
+                                    "Reset Center Object",
+                                    crate::modules::IconKind::Svg(include_bytes!(
+                                        "../../../assets/icons/line.svg"
+                                    )),
+                                ),
+                            ],
+                            default: "CENTERREASSOCIATE",
+                        },
+                    ],
+                },
                 // ── Leaders ──────────────────────────────────────────────────
                 RibbonGroup {
                     title: "Leaders",