Modified animation controls

Author: harshpurwar

plotly/plotlyfig_aux/core/updateData.m

@@ -198,12 +198,21 @@
         opts{1} = nan;
         opts{2}.frame.duration = 10;
         opts{2}.frame.redraw = false;
+        opts{2}.fromcurrent = true;
         opts{2}.mode = 'immediate';
         opts{2}.transition.duration = 0;
 
         button{1}.label = '▶';
         button{1}.method = 'animate';
         button{1}.args = opts;
+        
+        opts{1} = {nan};
+        opts{2}.transition.duration = 0;
+        opts{2}.frame.duration = 0;
+        
+        button{2}.label = '◼';
+        button{2}.method = 'animate';
+        button{2}.args = opts;
 
         obj.layout.updatemenus{1}.type = 'buttons';
         obj.layout.updatemenus{1}.buttons = button;