You should look at hooking into Analytics - see this to learn how to work with AEM and other services -- Adobe Summit 2019 | L725 - Building a Web Experience Foundation with AEM, Target, and Analytics

On 6.3 - why are you using Classic? All work should be Touch UI and Granite resource types.

Select View as Published and then try

We have that use case for AEM 5.6 - but it will show you how - Adobe Experience Manager Help | Creating a custom Adobe Experience Manager PDF service

Exactly -- only admin should have access to CRXDE lite. Authors have access to Touch UI views - like Site admin.

YOu can write a custom solution that can query authors and then dump them into a SPREADSHEET.

You can develop very powerful custom resource types that you can drop into a component dialog. This is done via JS. We have an example of creating a custom resource type here: Adobe Experience Manager Help | Creating a custom Experience Manager 6.4 sling:resourceType for Touch UI

We cover how to work with Sling Models and Show HOW TO inject values here: Building Experience Manager 6.5 Components using Granite/Coral Resource Types I recommend going through this entire document to learn how to develop AEM Components - including working with Multifield.

I have asked the team that wrote this to answer here.

This could be a bug. at AEM version are you using?