How do you limit the entries in a CRM WEB UI assignment block?

[stephenl1]

We have an assignment block called dates (as shown below)

This assignment block shows all dates associated with the processing type of the CRMD_ORDERADM_H record being displayed. The dates displayed are controlled from SPRO under Customer Relationship Management > Basic Functions > Date Management > Define Date Profiles. This has the ability to define all dates relevent to a process type. For the process type in question there are 37 dates associated with it.

The problem we have is that we have set up our CRM to base information on Processing Type and Category, so the dates need to be further limited on the assignment block to only those relevent for each processing type and category. i.e. for process type ABC and Category A we may only have five dates that are relevent, so we only want to show these five, not the whole 37 for the processing type.

We have created a Z table to identify which dates are relevent to the process type and category, but do not know how to customize the assignment block to be able to utilise this Z-table and reduce the dates being displayed to just those that are relevent.

Does anyone know how to go about restricting entries displayed in an assignment block in this way?

Thanks

Stephen