The way DroneDeploy Ground handles user permissions is a bit different than what you're used to in StructionSite. Here's a quick overview that will help you understand what permissions you can expect to be granted on an upgraded project based on your previous permissions in StructionSite.
Project Permissions in StructionSite vs. DroneDeploy Ground
For a more in-depth breakdown of permissions in DroneDeploy Ground, please check out the article Add Members to Your Organization.