New music - graphic notation?

Hello I am still using Dorico 3.1.

Is there any possibility to edit slurs and lines a bit more than in the length etc?
I am looking f.e. for a small starting “wavy” line getting bigger and bigger, for a growing glissando out of specific intonation.
And for a “stairs-like” shape for a bow glissando on the strings…


Is there a way to do this in D 3.1?

Thank you

You can create multi-segment slurs and edit the segments to imitate a wavy line with increasing amplitude. Editing and creating custom lines however is only added in 3.5.