Yes, these two procedures could be done at the same time, but you need to be evaluated for a variety of factors. If your forehead lift can raise your eyebrows, the best option is to lower your hairline with a hair transplant.
You certainly would have to be seen in person or at least submit photos and videos. If the right conditions prevail, these two changes might possible be done endoscopically with the lower hairline and brow position maintained with Endotines.
Yes you can do both. It would take some coordination. First, if it is the surgical hairline lowering you want to have, you may want to have a hair transplant on the same day where hair would be placed in front of the hairline lowering incision and in your eyebrows. The hair that is often removed from the hairline lowering, can be used for the transplant. We have done this before. Alternatively, you can have a hair transplant lowering procedure. We would have to meet first and make the appropriate judgments.
Your hairline and eyebrows can be lowered at the same time. If your forehead and scalp are tight a tissue expander may be necessary to accomplish this. Have you previously had a brow loft?