Are there any instructions regarding Xtherion’s ‘trace line’ and ‘convert to curve’ line editing features?

I expect there are – just cannot find them.

The ‘convert to curve’ seems to take a line with straight segments and converts it to a smooth curve, so perhaps not so complicated.

I have not been able to get any useful insights after playing with ‘trace line’, except that it adds two buttons to the interface.

Thanks

Bruce