The toolbar shown to the left contains speedbuttons that are used to control the permutation process. Users click on these speedbuttons to set values in cell's permutation control which are then utilized to control the permutation process when a model permutation is triggered. Here is a brief description of each speedbutton and the its corresponding permutation behavior.

Reset (Dynamic)
The reset speedbutton is a dynamic controls which triggers an immediate permutation process to reset the current model to its original form. The original state control is maintained automatically as the user defines the initial model. Subsequently, after one or more model permutations, the model can be reset to it's original state. The term model in this instance refers to resetting all cells to their original state as either input cells or formula cells, but without resetting the actual data values stored in each cell.

Undo (Dynamic)
The undo speedbutton is a dynamic control that causes the model to be reset immediately to the state it was in when the last snapshot of the model was taken. The term model in this instance refers to resetting all cells to their original state as either input cells or formula cells, but without resetting the actual data values stored in each cell.   

Snapshot (Dynamic)
The snapshot speedbutton is a dynamic control that immediately creates a copy of the current model (formulas and data) in computer memory. This copy of the model can be used to reset the model formulas, data or both in response to a menu command by the user.

Toggle Precedent (Dynamic - Applies to Single Impact Only)
The toggle precedent speedbutton is a dynamic control that immediately changes the permutation controls current contents to the next contents in sequence. This is a targeting mechanism. It changes the target cell from a current to a next cell in the permutation control contents list. For example, if the current contents pointed to cell B1 and the next contents pointed to cell B2, then the toggle precedent speedbutton would change the current contents to cell B2 and move cell B1 to the bottom of the permutation control's content list. This control is only enabled for single impact cells. It is disabled for multiple impact cells.

Single Impact (Static)
The single impact speedbutton sets a static control value in the cell's permutation control that instructs the permutation process to use only the current permutation control contents to permute just a single precedent cell during model permutations which utilize this cell's permutation control.

Interactive Impact (Dynamic)
The interactive impact speedbutton sets a dynamic control value in the cell's permutation control that instructs the permutation process to display the cell's permutation control contents in a selection dialog. This dialog gives the user the opportunity to view and change the permutation pathway through the model when it encounters the cell containing this control value during the model permutation process.

Multiple Impact - Equal (Static)
The multiple impact - equal speedbutton sets a static control value in the cell's permutation control that instructs the permutation process to use the entire contents of the permutation control for the current cell and to permute every precedent cell listed with a new equation. This speedbutton causes the  equations stored for each precedent cell to contain a proportionate calculation that will result in all cells calculating an equal portion of the cell's final value. Keep in mind that the operation triggered here creates alternate equations for each precedent cell. It does not actually calculate any values. Thus, it is a permutation type which specifies a specific behavior and sets specific contents in the permutation control to achieve this behavior.

Multiple Impact - Percent (Static)
The multiple impact - percent speedbutton sets a static control value in the cell's permutation control which  instructs the permutation process to use the entire contents of the permutation control thus affecting multiple cells during the permutation process. It also automatically generates a set of equations for the precedent cells that contain a percent value which represents the percent the current precedent cell's value is of the current parent cell's value. This action is performed for each precedent cell separately and is stored in the permutation control for use during the permutation process.

Multiple Impact - Weighted (Static)
The multiple impact - weighted percent speedbutton sets a static control value in the cell's permutation control which  instructs the permutation process to use the entire contents of the permutation control thus affecting multiple cells during the permutation process. It also asks the user for a row or column offset to use in creating a set of equations which contain weighting percentages based upon the row or column offset. These percentages are stored in each precedent cell's equation which will be used during model permutations.

Multiple Impact - Total (Static)
The multiple impact - total speedbutton sets a static control value in the cell's permutation control which  instructs the permutation process to use the entire contents of the permutation control thus affecting multiple cells during the permutation process. It also asks the user for a row or column offset to use in creating a set of equations which contain weighting percentages based upon the row or column offset and the total of that column or row. These percentages are stored in each precedent cell's equation which will be used during model permutations.

Multiple Impact - User Defined (Static)
The multiple impact - user defined speedbutton sets a static control value in the cell's permutation control which  instructs the permutation process to use the entire contents of the permutation control thus affecting multiple cells during the permutation process. It also asks the user to enter the contents of the permutation control in a line by line dialog display. For example, the user could throw a value to another cell to trigger a subsidiary model permutation and also throw several equations to other cells. These permutation control contents are stored in the permutation control for use during the permutation process. They are "user defined" because the user edits them directly into the permutation control.

Multiple Impact  - Version (Static)
The multiple impact - version speedbutton is an alternate use of the user defined speedbutton above. It sets a static value in the cell's permutation control that specifies the name of a saved model version to load when the permutation process encounters the current cell during a permutation of the model.