F4 help - Structured search in webdynpro

Hi,

In my webdynpro application we have a text field for choosing a position with a F4 help option. Now with the F4 help we will be able to provide default Dictionary search help - H_T528B which works fine.

Now the problem here is that all the positions are listed in the sequence by their object ids. We are looking for an option where the user can look at the positions using organization hierarchy (Just like a "structure search" in R/3) and choose from it.

Is this possible in webdynpro ABAP? If not any other alternatives?

Thanks,

Prasath N