It would be nice to have the ability use extensions and/or their individual tools in ArcGIS Pro and ArcGIS Online for the cost of credits. I feel as ArcGIS Pro matures more and more, customers will need the ability to use 3D Analyst tools, and this feature would be especially beneficial to users as well as ESRI. We were recently in a situation where we were under a deadline, and I would have gladly spent credits for immediate access to 3D Analyst tools, rather than wait a week to obtain a (free) trial license and add it to our license server. ESRI could even scale the credit price based on how long the user wants access to the tool.
