jQuery Grid Plugin - jqGrid

Hi, i have recently started working with jqGrid and it is excellent. it is so far better than whatever grids could provide till now.

I am using inline editing, and stuck with a strange requirement : a column in my grid is editable, when i add a row to grid using addRowData, it initially has multiple values which need to be shown as dropdown. when user edits the row for first time, he will select one value among them, and thereafter it should be shown as textbox in edit mode with that value.

Note that this column has multiple values only when i add a row manually using addRowData, initially when the grid is loaded, this column will have a single value which is editable.

Can i somehow achieve this? A solution would be of great help.

Thanks.