Allow to edit multiple objects in once

[schenardi]

Give a possibility to simply edit multiple objects.

Simple usecase:

1. Query a layer e.g. with PRIORITY=HIGH
2. For the selected features: set field STATUS to "planned"

Would be nice in experience builder but also in an instant app.

MapViewer is far too complex for simple users.

[ChristopherCounsell]

This is a great idea! Sorely needed - our end users are not able to effectively manage any features. It was possibly in web appbuilder and it's causing a lot of headaches trying to migrate users out of that app.