Hide or supress standard collective search help

Hi All,

I want to hide or suppress collective differnt search criteria and use of custom elementry search rather than standard on certain condition.

I am able to add search help using append but unable to hide. Hidden option is available but i need to hide on condition.

for Field PSPNR WBS elemenent. PRPM search help.

Please lt me know how to do? Is there any enhancement / exit for that.

Please suggest.

Thanks

Dipak