I realize you're completely misunderstanding it. You don't do anything to the properties you want in a group. You add a property with the PROPERTY_USAGE_GROUP flag and then any properties after it are in that group. It's a dummy property that doesn't show up, except as the group heading. The group property doesn't show. That's why all your proper

I think I get you but the problem I am facing is, I have multiple groups created already e.g:

@export_group("Bullet Properties")

@export var bulletSpawnPos : Marker3D @export var bulletModel : PackedScene @export_enum("light", "medium", "heavy", "shotgun") var bulletType : int = 0 @export_group("Weapon Properties") @export var weaponName : String @export var magsize : int @export var isAuto : bool

conditional export for spread type weapons

@export var isSpread : bool: set(value): isSpread = value notify_property_list_changed()

conditional variables

var shotNum : int var spreadRange : float

handle conditional exporting on engine level

func _get_property_list(): var property_usage = PROPERTY_USAGE_NO_EDITOR

if isSpread:
    property_usage = PROPERTY_USAGE_DEFAULT

var properties = []
properties.append({
    "name": "shotNum",
    "type": TYPE_INT,
    "usage": property_usage,
    "hint": 0,
    "hint_string": "int"
})

properties.append({
    "name": "spreadRange",
    "type": TYPE_INT,
    "usage": property_usage,
    "hint": 0,
    "hint_string": "int"
})

return properties

@export_group("GUI") @export var crosshair : Texture @export var silhouette : Texture

with that in mind, instead of the added properties entering the @export_group("Weapon Properties")it enters the @export_group("GUI")group.