But not at the same time, right?

What I do is just change class -> press C to check equip -> click on a light damaged gear to open up the repair window -> click on "repair all" (it already show equipped gear the moment the repair window pop up) -> queue for duty or start to craft.
All that stuff you just said could be avoided with a "repair everything" button, therefore I still want it.

I swear some of you people don't understand the definition of QoL.