IP: activate/deactivate dataslice at runtime

Hi all,

I would like activate/deactivate data slices at run time of a query in order to show users data and update them with planning functions but not with user input.

In detail I would like to create a planning sequence containing the following function:

- FOX1 to call the dataslice exit to DEACTIVATE the specific dataslice

- FOX2 modifying the data

- FOX3 to call the dataslice exit to ACTIVATE the specific dataslice

In sdn I've found threads BPS --> IP Dataslice question... ( BPS -> IP Dataslice question.... ) in wich Gregor Dieckmann suggests of customizing class CL_RSPLS_DS_EXIT_BASE and callback his method on planning function.

Unfortunaly there isn't an example, can anyone give me some example?

Best Regards