diff --git a/static/js/ui/vlm.js b/static/js/ui/vlm.js
index 2e822a0..82ac3a2 100644
--- a/static/js/ui/vlm.js
+++ b/static/js/ui/vlm.js
@@ -54,7 +54,11 @@ const VlmUI = {
                 '<div id="vlm-scene" style="font-size:12px;color:var(--text);margin-bottom:10px;line-height:1.5"></div>' +
                 '<div style="font-size:9px;letter-spacing:1.5px;color:var(--accent);margin-bottom:6px">ERKANNTE OBJEKTE</div>' +
                 '<div id="vlm-objects"></div>' +
-                '<button class="overpass-exec-btn" id="vlm-search-btn" onclick="VlmUI._confirmAndSearch()" style="margin-top:10px">AUF GLOBE SUCHEN</button>' +
+                '<label style="display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-dim);margin-top:8px;cursor:pointer">' +
+                '<input type="checkbox" id="vlm-use-bbox" style="accent-color:var(--accent);width:14px;height:14px">' +
+                'Nur im sichtbaren Bereich suchen' +
+            '</label>' +
+            '<button class="overpass-exec-btn" id="vlm-search-btn" onclick="VlmUI._confirmAndSearch()" style="margin-top:8px">AUF GLOBE SUCHEN</button>' +
                 '<div id="vlm-search-result" style="margin-top:8px;font-size:11px;color:var(--text-dim);display:none"></div>' +
             '</div>' +
             // Reset
@@ -243,9 +247,10 @@ const VlmUI = {
             return;
         }
 
-        // BBox vom Viewport
+        // BBox: Standard weltweit (null), optional auf Viewport einschraenken
         var bbox = null;
-        if (Globe.viewer) {
+        var bboxCb = document.getElementById('vlm-use-bbox');
+        if (bboxCb && bboxCb.checked && Globe.viewer) {
             var rect = Globe.viewer.camera.computeViewRectangle();
             if (rect) {
                 bbox = [