It's quite annoying that when working on the head/body with mirror function, one have to keep switching it back and forth.

For example when working on the side one may want to have "through" enabled, and when they switch to work on front/back, they have to turn off "through" and turn on "X axis". Forgetting to do so will corrupt the other side of their work.

Suggestion:

• Add an additional type of mirror which automates the process. "through" will be applied to side of the body/head, and "X axis" will be applied to front & back of body/head.
• In other words, this type of mirror assumes you are making a symmetry character. The line of symmetry is aligned vertically, cutting through the model in the middle.