1. A method for using an undo stack to explore past actions and apply new actions to previous states in a data view, the method comprising: providing, by one or more processors in a processor set, a user interface allowing a user to perform operations on undo stack entries in a business analytics data view, wherein the performable operations include filtering data values, expanding data values, collapsing data values, drilling down on data values, drilling up on data values, applying formats to data values, showing totals as trailing, and showing totals as leading; detecting, by one or more processors in the processor set, a first change in the business analytics data view; responsive to detecting the first change in the business analytics data view, displaying, by one or more processors in the processor set, a first undo stack entry representing a state of the business analytics data view corresponding to the business analytics data view prior to the detected change, and a second undo stack entry representing a first current state of the business analytics data view; upon detecting the first change in the business analytics data view and displaying the first undo stack entry and the second undo stack entry, detecting, by one or more processors in the processor set, a second change in the business analytics data view; responsive to detecting the second change in the business analytics data view, displaying, by one or more processors in the processor set, a third undo stack entry representing a second current state of the business analytics data view; upon detecting the second change in the business analytics data view and displaying the third undo stack entry, detecting, by one or more processors in the processor set, a third change in the business analytics data view; responsive to detecting the third change in the business analytics data view, displaying, by one or more processors in the processor set, a fourth undo stack entry representing a third current state of the business analytics data view; detecting, by one or more processors in the processor set, a selection of a branch operation for associated with one of the first undo stack entry, the second undo stack entry, and the third undo stack entry; responsive to detecting the selection of the branch operation, applying, by one or more processors in the processor set, the branch operation to the state of the business analytics data view represented by the branch operation's respective undo stack entry, wherein applying the branch operation creates and displays a new window that includes the undo stack and the business analytics data view represented by the branch operation's respective undo stack entry; detecting, by one or more processors in the processor set, a selection of a copy operation for one of the first undo stack entry, the second undo stack entry, and the third undo stack entry; responsive to detecting the selection of the copy operation, applying, by one or more processors in the processor set, the copy operation to the state of the business analytics data view represented by the copy operation's respective undo stack entry, wherein applying the copy operation makes the business analytics data view represented by the copy operation's respective undo stack entry available for reuse while remaining in the new current state of the business analytics data view; detecting, by one or more processors in the processor set, a selection of a save as operation for one of the first undo stack entry, the second undo stack entry, and the third undo stack entry; responsive to detecting the selection of the save as operation, applying, by one or more processors in the processor set, the save as operation to the state of the business analytics data view represented by the save as operation's respective undo stack entry, wherein applying the save as operation allows the user to save the business analytics data view represented by the save as operation's respective undo stack entry while remaining in the new current state of the business analytics data view; detecting, by one or more processors in the processor set, a selection of one of the first undo stack entry, the second undo stack entry, and the third undo stack entry; and responsive to detecting the selection of one of the first undo stack entry, the second undo stack entry, and the third undo stack entry, returning, by one or more processors in the processor set, the business analytics data view to the state represented by the selected undo stack entry.