Robin Look, let’s get this straight. This is not Linux, this is not Windows, this is GhostBSD. Big difference! Totally different league. Much better.
Now, let’s be honest. You are asking for a GUI partitioning tool that is NOT needed. Completely unnecessary. A total waste! GhostBSD runs on ZFS, the best filesystem ever created. Believe me, nothing even comes close. And guess what? ZFS already lets you manage disks easily after installation. You do not need some outdated partitioning tool. ZFS handles everything better. More powerful, more flexible, rock-solid.
If you are using GhostBSD, you already have everything you need. Instead of wasting time on a partitioning tool, it would be much smarter to create a proper ZFS management tool. Something that enhances what ZFS already does best. That is the right move. That is the winning move.
Bottom line? Learn ZFS commands, or if you really need a tool, build a proper ZFS-focused GUI. Keep it simple. Keep it efficient. That is how GhostBSD was meant to be used. No nonsense. Just results.
And look, if you want Linux, go use Linux. If you want Windows, well… good luck. But if you want GhostBSD, use it the way it was meant to be used. Smart. Stable. Superior.