This will open the Master Tool Settings form. This allows you to view, modify or delete the settings used by many of the Impact tools.
Note that some settings may be affected by the drawing you have open - for example settings which require you to choose a palette or layer will display a list of those available in the current drawing. This is not always what you want, as when you come to run the tool which uses these settings, the named palette or layer may not exist in the drawing you are modifying. For this reason it is usually advisable to close all projects before modifying Master Tool Settings. A warning message is generated the first time you run this tool with a project open.