7. A non-transitory storage medium including program instructions executable by one or more processors that, when executed, cause the one or more processors to perform operations, the operations comprising: outputting, for display, a spreadsheet document that includes one or more data cells and a document tab; receiving an indication of a user input selecting a document entry in the spreadsheet document for applying conditional formatting to the document tab based on the document entry, wherein the document entry is one or more of the one or more data cells of the spreadsheet document; outputting, for display in response to the user input selecting the document entry in the spreadsheet document, a conditional formatting user interface for associating one or more conditional formatting rules with the document entry and the document tab; receiving an indication of a user input of one or more conditional formatting rules linking a property of the document tab with the document entry; and changing the property of the document tab based on the one or more conditional formatting rules.
7. A non-transitory storage medium including program instructions executable by one or more processors that, when executed, cause the one or more processors to perform operations, the operations comprising: outputting, for display, a spreadsheet document that includes one or more data cells and a document tab; receiving an indication of a user input selecting a document entry in the spreadsheet document for applying conditional formatting to the document tab based on the document entry, wherein the document entry is one or more of the one or more data cells of the spreadsheet document; outputting, for display in response to the user input selecting the document entry in the spreadsheet document, a conditional formatting user interface for associating one or more conditional formatting rules with the document entry and the document tab; receiving an indication of a user input of one or more conditional formatting rules linking a property of the document tab with the document entry; and changing the property of the document tab based on the one or more conditional formatting rules. 12. The non-transitory storage medium of claim 7 , the operations further comprising: subsequent to changing the property of the document tab, monitoring the document entry and updating the property of the document tab in response to a change to the document entry.