We need to figure out how to disrupt gravity and amplify gravity.
If we can disrupt gravity betwen the sun and Venus, Venus will leave orbit in a straight line. If we time it right we should be able to colide it into Mars making an Earth sized planet.
If we can amplify gravity between the sun and Mars, we should be able to move the orbit of Marvenus closer in. After it cools off some from the collision, of course.
We can then amplify the gravity between Mars and ice comets in the Oort cloud. Probably using Neptune first to get them started. Providing Mars additional water and atmosphere.
Venus doesn’t have a magnetosphere either, but solar radiation ionizes venus’s upper atmosphere, making an ionosphere, which gives it some protection. So I think an artificial ionosphere is in order.
Plus the two skills at gravity manipulation would allow us to make adjustments at will. Not only would be be able to adjust the orbit of the new Marvenus planet. But we could move Earth further from the sun as it expands before becoming a Supernova. And lots of practical uses here at home from launching rockets, maintaining the orbits of existing satellites, lifting the stars of my 600 lb life, hover boards, hover trikes, hover amphibious assault vehicles, etc.
Easy, just create and destroy MASS...................
That is a major plot point of Larry Novel’s A World Out of Time novel.