We’ve seen this demonstrated, but I wanted it in my collection, so call it a cover if you like.

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Autodesk added a new function to Inventor 2011, that permits the use of ‘=’ character to instruct the application to RENAME the parameter AND dimension it according  to the input, all in one fast entry.  This eliminates the need to navigate to the Parameters dialog, or to edit the dimensional properties later.  This is one of my favorite enhancements since I am always renaming parameters.