1) We should have the ability to roll for Investigation in a room at anytime we want, to discover something about that room or a hidden door.
2) Perception of an area could also be included in this.
At the moment these rolls happen automatically and often too fast to realise what roll it even was if you are navigating with WASD camera and not camera locked on the character.
Perception works well in most places, but for finding a hidden door or hatch - its far too easy to discover when you are roaming. An option to choose to have manual perception / investigation during your playthrough would be far more interesting and give more value to books / letters you read that give clues t where you should roll for these checks.
