diff --git a/trailer.html b/trailer.html
index b7c695d..cfde1fb 100644
--- a/trailer.html
+++ b/trailer.html
@@ -1502,7 +1502,11 @@
     return '<div class="sceneshare" style="margin:4px 0 8px"><b style="color:var(--ink)">Opening picture</b>'
       + '<button type="button" class="btn small ghost" data-useframe="first|' + esc(s.id) + '"' + (p.opening_url ? '' : ' disabled title="Shot ' + esc(p.id) + ' has no picture yet"') + '>Same as shot ' + esc(p.id) + '\'s first frame</button>'
       + '<button type="button" class="btn small ghost" data-useframe="last|' + esc(s.id) + '"' + (p.clip_url ? '' : ' disabled title="Shot ' + esc(p.id) + ' has not been filmed yet"') + '>Same as shot ' + esc(p.id) + '\'s last frame</button>'
-      + from + '</div>';
+      + from
+      + ' <span style="margin-left:10px"><b style="color:var(--ink)">Motion</b> '
+      + (s.motion_from ? '<span class="tiny">follows shot ' + esc(s.motion_from.shot) + '\'s clip (direction of travel, camera side, pace)</span> <button type="button" class="btn small ghost" data-useframe="nomotion|' + esc(s.id) + '">stop following</button>'
+         : '<button type="button" class="btn small ghost" data-useframe="motion|' + esc(s.id) + '"' + (p.clip_url ? '' : ' disabled title="Shot ' + esc(p.id) + ' has not been filmed yet"') + ' title="The previous shot\'s clip is sent to the video model as a reference for direction of travel, camera side and pace">Carry the motion of shot ' + esc(p.id) + '</button>')
+      + '</span></div>';
   }
 
   function shotHtml(s, voice) {
@@ -1714,7 +1718,7 @@
       var uf = el.getAttribute("data-useframe").split("|");
       el.disabled = true;
       r = await act("use_frame", { draft_id: CUR, shot_id: uf[1], frame: uf[0] });
-      if (r) { showMsg("msg", "Shot " + uf[1] + " opens on the " + r.frame + " frame of shot " + r.from + (r.frame === "last" ? " - taking the frame from the clip, a few seconds." : "."), "ok"); await refresh(); }
+      if (r) { showMsg("msg", r.frame === "motion" ? "Shot " + uf[1] + " will follow the motion of shot " + r.from + "'s clip when it is filmed." : r.frame === "nomotion" ? "Shot " + uf[1] + " no longer follows a clip." : "Shot " + uf[1] + " opens on the " + r.frame + " frame of shot " + r.from + (r.frame === "last" ? " - taking the frame from the clip, a few seconds." : "."), "ok"); await refresh(); }
       else el.disabled = false;
       return;
     }