Hello, I´m using BAM Aggregation xCelerator to create custom reports. I need to use this custom entity in a muli-drilldown dashboard, but when I tried to configure PRS to add the event for a column, appears the following message:

It seems that PRS can´t find INSTANCEID in my custom entity, but the field was selected. To solve this problem I configure a relation betwen my custom entity and "Process Execution" entity using the DQL below (I change the DQL statment betwen [] into the real values):
create bami_rg_relation object
set parent_entity_id='[select r_object_id from bami_rg_entity where gui_display_data='Lista_Instancias']',
set child_entity_id='[select r_object_id from bami_rg_entity where gui_display_data='Process Execution']',
append where_clause='parent_entity.ID0=EntityTable0.INSTANCEID',
set distinct_relation=False,
set description_code='',
set acl_name='[select distinct acl_name from bami_rg_relation]',
set acl_domain='[select distinct acl_domain from bami_rg_relation]',
link '/System/BAM/Custom Entities'
It resolve the message into PRS. Then I configure Multi-drilldown in Taskspace with this dashlet (dashlet A) sending “Process Instance ID ”event to 2 other dahslets:
-another custom entity (dashlet 
-Native “Process Diagram”
When I select a column in dashlet A, “Process Diagram” works fine, but in dashlet B appers this message:

So the problems are:
1-how I configure a “Process Instance Event” in a custom entity.
2-what I´m doing wrong with multi-drilldown configuration in dashlet B.
Please, HELP !