Dear community,

I wonder if there is an automaticaly way to extend trajectory along tool axis  when using for instance a "Z level contouring". 
The aim is to start an helicoidal traject few 1/10mm higher in a finishing operation with a tool who have a corner radius. 
Curently, i use the "generative shape design" to extend surfaces and it's working very well but it is a little bit "time-consuming"...
Thank's a lot !