By doing so, that will prevent the line form extended.  For instance, if the line is an horizontal line, I want it to expand only horizontal.  By disable the end and starting point, that prevent it from expanding at all.  I don't want the line to extend diagonally, but horizontally.

To prevent a line shape change its direction you shoul set its Rotate, ChangeStartPoint and ChangeEndPoint protections.

Best Regards,
Nevron Support Team

I now it is possible with the connector line, however I prefer the nlineshape.

I have an NLineShape that I want to set to orthogonal mode. I don't want the line to be rotated and I couldn't find a way to disable rotation for the line. It looks like lines cannot be protected from rotating.