Does anyone knows if there's a feature where I can have my preview or dummy preview/camera that I'm looking on screen parented to a trackpoint?
So that I can have a zoomed in preview of how well my trackpoint it tracked and from there I can refine my trackpoints by toggling frames before and after to slightly adjust the key.
No. AE is by no means a tracking tool and doesn't have respective view tools. You can only zoom in and hope for the best or move on to greener pastures and use mocha for all your tracking needs, which has this stuff already.