Offset Diameter

I would like to ask about any plugin or extension that would (more) easily go from an upright (90 deg.) to a 30 deg. offset on a curve. or 1/4 diameter. I am trying to model the sinks from Moaning Myrtle’s Bathroom and am going nowhere with it. I have Sketchup Pro 2018 on an HP Pavilion PC with Windows 10 installed.

Any thoughts on this would be welcome, my email is popadave5@gmail.com.

Cheers,

David

Could you show an image of what you need? I can’t follow your words…