Expanded Christmas Budget within Christmas Fund

Every year I save for Christmas starting in January so I have a consistent rolling fund. However, when it comes time to purchasing gifts it becomes difficult to track. Every year I create a separate Excel spreadsheet to track my budget per person and then what I've bought, from where, and then have to also add it to EveryDollar. 

It would be so nice to create a budget within my budget to just click on my Christmas budget and then it expands to add every person I need to buy for and I can add the gifts/amounts and track spending which then totals up to the bigger Christmas fund so I can see for each person how much I've spent/have left to spend, but then also how that impacts the overall Christmas budget.