Inset Polygon - no options menu

In the tools menu I have the Inset Polygon button, but there are no menu options below it - which I have seen present in training videos.

Is there a way to make these Inset Polygon options appear so I can control accurately how far the inset happens?

when I right-click on the Inset button and choose ‘Edit Translation’ from the sub-menu that appears, I get an error message - 'Please set your user preferences Translation Branches Directory path to a valid directory.

Any advice welcome - Thanks

Are you saying that when you click the Inset Polygon button, that the options don’t appear at the bottom of the tool shelf? Try pressing F6 (after clicking Inset Polygon) and see if that helps.