Using Spotlight v 6.2.1 and Knowledge Expert 10.1. From main menu of Spotlight on DB2 click on Pending Lock, a window pop up. A Knowledge Expert icon with a line: "Reducing locks wait ". Click on the line, there is no responses.
Waiting for the fix with Cr/ST 55363 on Knowledge Expert for DB2 and 55364 for Spotlight on DB2 in the future release.