diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index a6915bb7c..35e40b83c 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -99,6 +99,7 @@ sub new {
         $self->{canvas3D}->set_on_select_object($on_select_object);
         $self->{canvas3D}->set_on_double_click($on_double_click);
         $self->{canvas3D}->set_on_right_click(sub { $on_right_click->($self->{canvas3D}, @_); });
+        $self->{canvas3D}->set_on_arrange(sub { $self->arrange });
         $self->{canvas3D}->set_on_rotate_object_left(sub { $self->rotate(-45, Z, 'relative') });
         $self->{canvas3D}->set_on_rotate_object_right(sub { $self->rotate( 45, Z, 'relative') });
         $self->{canvas3D}->set_on_scale_object_uniformly(sub { $self->changescale(undef) });
diff --git a/lib/Slic3r/GUI/Plater/3D.pm b/lib/Slic3r/GUI/Plater/3D.pm
index 503a3d159..1c123e741 100644
--- a/lib/Slic3r/GUI/Plater/3D.pm
+++ b/lib/Slic3r/GUI/Plater/3D.pm
@@ -9,7 +9,7 @@ use Wx::Event qw(EVT_KEY_DOWN EVT_CHAR);
 use base qw(Slic3r::GUI::3DScene Class::Accessor);
 
 __PACKAGE__->mk_accessors(qw(
-    on_rotate_object_left on_rotate_object_right on_scale_object_uniformly
+    on_arrange on_rotate_object_left on_rotate_object_right on_scale_object_uniformly
     on_remove_object on_increase_objects on_decrease_objects));
 
 sub new {
@@ -88,7 +88,9 @@ sub new {
             $event->Skip;
         } else {
             my $key = $event->GetKeyCode;
-            if ($key == ord('l')) {
+            if ($key == ord('a')) {
+                $self->on_arrange->() if $self->on_arrange;
+            } elsif ($key == ord('l')) {
                 $self->on_rotate_object_left->() if $self->on_rotate_object_left;
             } elsif ($key == ord('r')) {
                 $self->on_rotate_object_right->() if $self->on_rotate_object_right;
@@ -122,6 +124,11 @@ sub set_on_right_click {
     $self->on_right_click($cb);
 }
 
+sub set_on_arrange {
+    my ($self, $cb) = @_;
+    $self->on_arrange($cb);
+}
+
 sub set_on_rotate_object_left {
     my ($self, $cb) = @_;
     $self->on_rotate_object_left($cb);