Hi Pilou,

re:
> Curriously for the Beta v4 i have only UnwrapCurve.js and not UnwrapCurve.htm and that works fine also! ??

The .htm files contain the UI for a command. If a command just does some immediate action and does not display any UI then the .htm file is not needed. So that is normal that some commands may have only a .js file and not a companion .htm file.

- Michael