--- a/+multiblock/Def.m	Wed Jul 18 11:26:10 2018 -0700
+++ b/+multiblock/Def.m	Wed Jul 18 15:26:15 2018 -0700
@@ -48,13 +48,14 @@
             g = multiblock.Grid(grids, obj.connections, obj.boundaryGroups);
         end
 
-        function show(obj, label, gridLines, varargin)
+        function h = show(obj, label, gridLines, varargin)
             default_arg('label', 'name')
             default_arg('gridLines', false);
 
+            h = [];
             if isempty('label') && ~gridLines
                 for i = 1:obj.nBlocks
-                    obj.blockMaps{i}.show(2,2);
+                    h = [h, obj.blockMaps{i}.show(2,2)];
                 end
                 axis equal
                 return
@@ -63,7 +64,7 @@
             if gridLines
                 ms = obj.getGridSizes(varargin{:});
                 for i = 1:obj.nBlocks
-                    obj.blockMaps{i}.show(ms{i}(1),ms{i}(2));
+                    h = [h, obj.blockMaps{i}.show(ms{i}(1),ms{i}(2))];
                 end
             end