Change # of items on Jump List

I have programs on the taskbar and use jump lists to pin individual files that I use all the time for quick access.  I would like to be able to change the # of items -- increasing the #.   I have: increased the # under Start10, Configure, Allocate room for 16 large icons --- no change. 

I see nothing under Windows settings to increase/decrease the jump item #.

Could we have this feature included in the next update of Start10? Here is a snippet of a right click on notepad that I have pinned on the taskbar.  It shows 1 pin item; 9 recent files.... I want to increase to 16. 

I tried regedit but it did not take....([HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced] "JumpListItems_Maximum"=dword:00000016 --- it shows 16 but it wont show 16.  I have a large screen, high resolution so there is more than enough room.

Any ideas?