SAP Screen Personas 3.0 SP07 : Issue with Method showF4Help()

[sbaxi]

We are using Personas 3.0 SP07 on WEBGUI. For Material Number Help, instead of using the collective serach help that is the SAP default, I am using an elementary search help (MAT1W) from the list of collective search help. I was able to create a structure and add the elementary search help. I have added the structure and field MATNR to the whitelist. The invocation of the help is through the method showF4Help('Structure','Field', ' '). The Invocation and selection work fine on 'Single Item' screen or any input field that I create on 'Collective Processing' screen in transactions ( 'MB1A' and 'MB1B' ). However, when the same is used for the collection of Input Fields with ids like ( "wnd[0]/usr/sub:SAPMM07M:0421/ctxtMSEG-MATNR[0,7]", "wnd[0]/usr/sub:SAPMM07M:0421/ctxtMSEG-MATNR[1,7]" ...and so on), the invocation is fine, but the selected value does not populate the input field. I am using the 'onF4' event to tie my script with showF4Help('Str', 'Fld', ' ') for the first input field. The invocation of help works fine. The selected material is never gets populated in the input field. The SAP standard help for material works fine for all the input fields in the collection. Is this a limitation of showF4Method or I need to take additional steps to ensure the selected material value fills up the first field ( "wnd[0]/usr/sub:SAPMM07M:0421/ctxtMSEG-MATNR[0,7]"). Appreciate any help in this matter.