By default hide help when specifying a custom buffer format

renderdocui/Controls/BufferFormatSpecifier.cs

@@ -77,7 +77,7 @@ namespace renderdocui.Windows.Dialogs
             }
         }
 
-        private void toggleHelp_Click(object sender, EventArgs e)
+        public void ToggleHelp()
         {
             helpText.Visible = !helpText.Visible;
 
@@ -99,6 +99,11 @@ namespace renderdocui.Windows.Dialogs
             tableLayoutPanel1.ResumeLayout(false);
             tableLayoutPanel1.PerformLayout();
         }
+
+        private void toggleHelp_Click(object sender, EventArgs e)
+        {
+            ToggleHelp();
+        }
     }
 
     public interface IBufferFormatProcessor