Well nobody like to leave middle of mission just to forge thing or call your friend to reserve slot to go forge
So Auto forge is an option to toggle at your gear in your arsenal
Ex. I got a seerus mask and snarby coat . I want to heat snar but not seerus so I toggle auto forge on coat so I can save crystal from mask (so you can just toggle it on any thing dat you want to heat)
How does it work?
After finnished de level ,if your item gain heat enough to lv. Up but still got some left then those heat will continue fill to next lv. Bar (like old heat system) but will consumed crystal = current lv.
And remove chance to recive 25%+ heat and forge box and double lv up
If not enough crystal Auto forge will not occur
heat amps could use this.
if you mean forging without an arsenal station, then no, stop grinding bosses, it's equally efficent.