Darius has prepared the range $H1$:$M17$ for detailed projections to complete later. For now, he asks you to enter the expense categories, which he will use in other workbooks. Build a custom list of categories as follows:

a$.$ Create a custom list by importing the range A$4$:A$17.$

b$.$ Enter the text Income in cell $H4,$ and then use the new AutoList to fill cells $H5$:$H17.$