Hi Jawad, It can be done by: right click at the "Tab control", select "Create" ->"Property node" ->"Pages" Now you have this property at the block diagram.It's output is an array.Wire it to "Index array.vi",and as index use the page you want to enable/disable. Now, get the output of "Index Array.vi" ,right click -> "Create" ->"Property for Page Class" -> "Page Visible".right click -> "Change to write".Now you can wire to it your desired state.Regards,Michael