Help in Custom ovs

Hi Experts,

I have gone through various post related to custom OVS but din't find solution. I have requirement to create custom ovs and  add it to the extended field on accounts screen. I have achieved that. But when i select the record from popup i want description in my extended field. Could any body help me out please. here are the below images for reference.

1) This are the extended fields on account screen.

2) This is the custom ovs.

3) When i click on any record. I get the result as shown in below image.

But i want to get LOB Desc in LOB field.

4) When i am trying to search the record i want to make it case insensitive.

Could any body help me out please.

Thanks,

Quddus.