You can hold down Shift while clicking, this also rearrange the the loop to keep the curvature of the surrounding polygons.
Hover over the Swift Loop Tools to see more options with modifier keys to slide/straighten loops,ect.
If you just want a cut exactly in the middle you can use edge insert.
Insert Loop
For symmetrical modeling, this works different in 3dsmax with the help of the symmetry modifier. That you can stack up and model below.
Especially for Hard Surface modeling i can recommend the youtube channel of Arrismus 3d:
https://www.youtube.com/channel/UCSLLdTBwLMfTKWS56tOiQpw