Searchable Drop Down on Different Sheet

I have a workbook in which I have created a searchable drop down list, on the LIST MANAGER sheet. Currently the Searchable Drop Down list only appear in one cell (Yellow cell) on the LIST MANGER sheet. I followed this video https://www.youtube.com/watch?v=vkPoViUhkxU to create what I have so far.

But I need help to have the same drop down list to appear in EVERY cell in the NAME column, of the INCOME section, on January budget.
I don't need the drop down in the yellow cell.

I should then be able to use that to complete the searchable drop downs for Living Expense and Misc-Expense sections.

I really appreciate your help