When editing an operation and on the first tab of the operation dialog where you select to the tool it would be nice to have the tool and holder attached to the cursor so it could be dragged around the screen to get a visual to see if the tool will work with out interference.
I guess it would not have to be just on the first tab as long as it did not negatively effect geometry selection.
Many cam systems have this and I have seen one have it so you can dynamically modify the tool projection based on model selections and drag handles. This would also be handy for turning tools and groove tools.
