Changing Slot number for IO module

Hi

I am learning PLC programming and recently wrote on PLC program for a small project. I wrote code in vmware and downloaded in PLC later on but when I received my control panel IO cards were in different slots then one I show on my virtual machine project. How can I change slot number for IO module? I am using TIA portal Version 12 and my PLC is Siemens 1214.

Thanks in advance.

I manage to figure out that it was drag and drop. I tried that earlier but it didn't work but my colleague done exactly same and it swap the slot number. It will be helpful to someone who is just starting.

Thanks for popping back in with your solution. As you say, it will probably be very helpful to someone later on.

https://xkcd.com/979/