Works fine! Whith that no need to make a Ctrl + z for erase a line !
And good result as we can see the result also on the Botom bar :)

Is it normal than a line is drawn and disapears at the end? I suppose yes :)

Have you plan the same for Angle between 3 points in the space?

Ps What is the language used?

Pss For the translation : is not possible to use something yet existant in the ui folder?
Else now we are obliged to translate in the Command Folder too !
(not very practical:)