Please help!!! Create custom layer set and share it with users in web app builder

[IrisGreen]

We need to create a functionality in web app builder where

1. User selects few layers from layer list widget and creates a new set of layers out of them.

2. User then should be able to share them with other users who are loading the URL of web app builder .

3. Also at the same time if user closes the web app builder  and reopens it he/she should be able to see the layer set    already created.

I am trying to understand the feasibility of this functionality using Web app builder.

Thanks in advance.

Iris

[RobertScheitlin__GISP]

Iris,

  Everything on your list are quite advanced things that I have not seen done yet. They would be possible for a very advanced developer though. I could not even begin to tell you where to begin on number one.

[IrisGreen]

Thanks Robert.

[RebeccaStrauch__GISP]

Since Robert is our communities most active developer (sharing with us anyway), I would have to agree with the difficulty level. 

However, I would think one place to maybe start is a geoprocessing service if you have access to ArcGIS Server

What is a geoprocessing service?—Documentation | ArcGIS for Server