SAP PPM: Change number of hits in the Search Heip

Dear Experts, please help me

I need to change "Default Number of Hits for Search Results" in SAP PPM

Standart Value is 100

I tried to do the following - change setting in area 0006 "User Interface Settings" setting 0010 "Default Number of Hits for Search Results":

SPRO - SAP Portfolio and Project Management - Portfolio Management - Global Customizing - Global Customizing - Global Customizing

But it isn't help:( the value is still100

Please , give me advice how can i change it?

Many thanks in advance