Authorization Object for Batch Determination

Hello SAP Gurus,

We have a situation where we would like to restrict few users to un-allocate the delivery. They can do the batch determination through VL02N but we like to restrict them to undo the batch determination.

Any of you can help if this is possible through authorization object or any other way?

Update on 06/10/2015 - I found an object V_LIKP_VST which has activity 06 (delete) which enables batch split but this activity also allows you to delete the delivery.

I am not sure why SAP gave batch split feature in V_LIKP_VST object with 06 activity.

Thank you much in advance.

Sanjay