DB2 LUW not listed in Maintenance Planner

I am looking to do a new install of SAP Netweaver 7.5 (SAP PI) on a DB2 LUW database, on AIX 64 bit OS.

In the Maintenance Planner, I have selected:

• SAP Netweaver 7.5 (SPS 11)
• AIX 64bit

I can see these listed:

• DB2 UDB
• DB2/390
• DB2/400

but not DB2 LUW.

The PAM and OSS note 1168456 both show that DB2 LUW is supported.

Why can't I see DB2 LUW listed? Do I just need to the the DB2 LUW specific files manually, instead of via the Maintenance Optimizer?