How to add a 3d Polyline to Web Scene

CyrusBlankinship1

I'm attempting to export a polyline (with z values) from Pro to AGOL. However, I'm unable to export as a scene layer package or simply a web layer...

In addition, how do you add this to a web scene once it's uploaded to your account? I'm trying to add a building wireframe similar to the example provided by esri here:

SceneLayer filter and query | ArcGIS API for JavaScript 4.3 

RussRoberts

There is currently not a scene layer for lines so you will not be able to do that workflow. You can publish the layer as a feature layer and bring that into a web scene and have the layer set to absolute height where it will leverage the z values on the line vertices.