diff --git a/lib/Slic3r/GUI/SimpleTab.pm b/lib/Slic3r/GUI/SimpleTab.pm
index 0463a3d4e..c1fee5439 100644
--- a/lib/Slic3r/GUI/SimpleTab.pm
+++ b/lib/Slic3r/GUI/SimpleTab.pm
@@ -78,6 +78,17 @@ sub load_config {
     }
 }
 
+sub set_value {
+    my $self = shift;
+    my ($opt_key, $value) = @_;
+    
+    my $changed = 0;
+    foreach my $optgroup (@{$self->{optgroups}}) {
+        $changed = 1 if $optgroup->set_value($opt_key, $value);
+    }
+    return $changed;
+}
+
 sub is_dirty { 0 }
 sub config { $_[0]->{config}->clone }