Run a Script on Drop From Asset Browser

As part of the asset data block, there should be an optional text block link. This would be a place to include a script to be run whenever the asset is dropped onto a scene. The primary use case would be for additional setup to go along with adding a node group to an object. However, there may be other tasks you want to do when adding an asset of other types:

A couple of use cases:

1. The object the node was dropped on needs to have some named attributes added to it.

2. The node group has a collection of objects that come with it and that collection needs to be disabled immediately.

Other issues:

There may need to be a drop session variable exposed to the script that includes ID of new datablock being dropped, Location/Rotation of drop point, ID of object being dropped on, etc.