I'd love to have a filter so I can hide mission types I'm not interested in, like wing and assassination missions. That way, I could quickly browse the potentially interesting missions without being bothered with the rest. And people who want to solo wing missions still can.
That sounds ideal - if each ship you owned could have it's own filter selection
So if you're in your mining ship, you only see mining missions etc (plus data/deliveries if you choose to turn those ones on)