Zooming in and out

Hello, guys!

Im new here, but i have searched for it a while. I love the function about LBM and RBM that we can go down and up, so far we want’s. But when im trying to zoom into my window for example with the wheel at the mouse. Im either coming too far away, or “inside” the walls. So i can’t adjust the windows frame to the correct place.

I was trying to do it in blueprints as well. But i don’t “see” the frames, how to fit the window. It’s annjoying that’s less then 1 cm wrong, but can’t fix that problem. Is there anyway we can zoming like we are going up and down with LBM + RBM?

Or any example about scripts too override the wheel on the mouse, so we can zoom in slower?
Thanks in advance.