learn.forge.viewmodels | Learn Forge Tutorial : View your models | Runtime Evironment library

I create a website using Forge-Viewer, it implements loading several models in one window, as shown in this article https://forge.autodesk.com/blog/aggregate-multi-models-sequence-forge-viewer. I need to select two, almost identical files, which differ from each other only by the properties of one element, and paint over these differences in red. How can I paint the differences between two identical uploaded files red?

This is for a new site. I have already tried all the methods and recommendations available on the Internet,but none of them helped me solve my problem.

My code is fully consistent with the code from this source https://github.com/Autodesk-Forge/learn.forge.viewmodels/tree/nodejs https://forge.autodesk.com/blog/aggregate-multi-models-sequence-forge-viewer

I expect that I can finally paint the differences in red, but so far I have failed.

I'm trying to implement multi-model model loading, but my loaded models are not displayed. My code is identical to this code https://github.com/Autodesk-Forge/learn.forge.viewmodels/tree/nodejs,the only difference is in the ForgeViewer.js file, where I use the code from this article https://forge.autodesk.com/cloud_and_mobile/2016/02/model-aggregation-with-view-data-api-exposed.html. When writing function launchViewer (token, urn) I get this "GET error https://developer.api.autodesk.com/derivativeservice/v2/manifest/undefined?domain=http%3A%2F%2Flocalhost%3A3000 400 (Bad Request)", and without adding token, I do not get an error, but the models are not displayed. The oss.js file is completely identical to the file from the first article.

Below is the code for the ForgeViewer.js file.

I am creating a site with a forge-viewer and want to view multiple loaded models in a single window. How can I enable the function of loading and viewing several models in one place?

This is for a new site. I have already tried all the methods and recommendations available on the Internet,but none of them helped me solve my problem.

My code is fully consistent with the code from this source https://github.com/Autodesk-Forge/learn.forge.viewmodels/tree/nodejs

I expect that I can finally add the function of loading and viewing several models in one window, but so far I did not manage to do it.

I want to create a method to remove already uploaded objects from the buckets. There is a method for uploading objects into the bucket, but there is no method for deleting them. Tell me how to do this?

I do it for the viewer autodesk Forge, the sources of which downloaded from here.

I tried to make it myself, but I failed. There were no changes to the downloaded sources, but in any case I can show my unsuccessful code.