Work order Screen objects settings

Hi Experts,

I've a requirement to display the Add. DeviceID  onto the work order screen, along with Equipment and Functional location.

I've tried to do this via using ref. Screen object O130 (Serial No.+ Material No.+ Device Id) wherein I can get the DeviceID field successfully displayed onto IW31 screen.

But in this case problem is , the Equipment and Functional location is not being displayed , instead Serial no. and Material fields are there. It can be displayed via Screen Object 0100.

Now as per my need , the requirement would be fulfilled via  mix of O100 & O130. So the question is , is there any way , we can create our own custom Screen objects , wherein can select the required fields.

Also Even if I'm using screen object O100 , I can view the Add. Device data field into IW38 (Order List) against the Order No. Is there any settings, we can display this Device data field on IW31 screen as well??  

Waiting for your valuable reply..

Thx in advance.