TREX Index / fast Find disabled for Infoset Datasource in Segmentation

Dear All,

I have few questions with Trex or fast find indicator..

For some of the attributes belonging to a Datasource of type Infoset ,Trex Index or fast find  is disabled Example "CRM_MKTHV_ISAM_OBJECTS" infoset  and also "Multiple " check box ...How do i enable them? SAP says that "In the case of multiple value attributes that you update via TREX, you must select the Multiple Values checkbox in the attribute properties. Otherwise, the system only updates the last attribute for each business partner during the TREX update"

2) Can i enable TREX Update Interval for Datasource of type BI ? does it mean that, all the relevant date from BI cube/DSO will be indexed in TREX ?

Best Regards

Sweta