Can't use melee in Archwing mode with controller

[Nightwing-009]

Hello, it's been MONTHS since the controller bindings for archwing mode have changed (don't know why) leaving me with:

1. No option to return to Warframe mode on Orb Vallis, Plains of Eidolon after using my Archwing.
2. No means of melee attack in Archwing or Railjack missions.
3. No melee attack with Titania's 4th ability.

This stems from the joining of three functions to one input as shown in the screen shot, please separate these functions giving the PC Controller users the freedom and comfort we once had.

Screen Shot