With Windows 10 there is no way via the gui or control panel, to set the amount of items that can appear in a given jump list. Its pretty much limited to 10 items at any given time. Well there is good news, as there is a registry hack that can enable many more, instantly.
All that is needed is to open the Registry Editor via Regedit and go to this key..
Now right click Advanced and create a new DWORD (32-bit) Value with name JumpListItems_Maximum and Decimal value something above 10, I have used 34 with success.
Now you will have expanded jump lists. If you choose a really big value, this will likely generate scroll bars to see all of the items in the list.
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