Edit single row in list UIBB

Hi Team,

I was working on a list UIBB. I have a requirement here. On selection of single row the row should become editable. My list will be read only initially. But once the user selects one row from the list it should be editable ? Any idea how to achieve this ? I searched field catalogue but we cannot control the field catalogue for each row. it is applicable to the whole column. Please help.

Thanks,

Vinod