Missing option when converting ellipse to arc segment

Fails to determine how many arc segments to create when Convert Ellipse to Arc Segment.

Hej Michael -

I’ll need more information here. Is that an error message you are seeing somewhere?
-wim

there is no error message.

I work with tunnel sections,
where I have to have control over how many elements there are

20 curves added to selection.
for the program to be able to interpolate between the sections
image

Have you tried playing with the AngleTolerance and Tolerance settings of the command?
-wim

I have tried, but if the next tunnel section is larger, it will be wrong, need to set that all should be, for example, 20 pcs