Adding AD group as Site Collection Administrator
Under the Explorer tab, when you select a site collection, you can add or remove Site Collection Administrators. This is a nice feature, as traversing and making changes to Site Collections runs smoother and faster through Sharegate, than running through SPO's Admin Interface.
The problem I am running into is we have several Human and Service account Admins that need to be added to every single site collections. Rather than add them individually we have created an AD Group object called SP_Admin. This contains all SPO tenant admins and is an easier grouping to add to the Site Collection Admin sets.
I know that you cannot add a group as the Primary Site Collection Admin, but Microsoft still allows groups to be added in the Secondary Site Collection Admin set.
Would you adjust your Administrator Addition in the Explorer part of the program to search and allow AD Groups as well, please.
Thanks!

With today’s release of ShareGate Desktop, it is now possible to set Security Groups as owners.
Thank you for your feedback and don’t hesitate to do it again in the future.
For the full release notes, please see: https://support-desktop.sharegate.com/hc/en-us/articles/360029020072