Microneedling into hair transplants

I got a HT 2 years ago, wondering if I can dermaroll/stamp in the area hairs we’re transplanted to (temples). I am hoping to thicken up the area some more. I don’t want to damage the hairs.  Also planning to roll/stamp my scar to reduce the appearance.  I am on both fin and min (oral).

Hair transplants often kick the stem cells for the hair in that area into what I think is a non-recoverable state.