Paste this in somewhere (For AE Graves)

        {
            "aliases": [
                "AddThisToWaveManager"
            ],
            "objclass": "SpawnGravestonesWaveActionProps",
            "objdata": {
                "GravestonePool": [
                    {
                        "Count": 3,
                        "Type": "RTID(CustomGrave@CurrentLevel)"
                    }
                ],
                "SpawnPositionsPool": [
                    {
                        "mX": 4,
                        "mY": 2
                    }
                ]
            }
        },
        {
            "objclass": "GridItemType",
            "aliases": [
                "CustomGrave"
            ],
            "objdata": {
                "TypeName": "gravestone_egypt",
                "GridItemClass": "GridItemGravestone",
                "ResourceGroups": [
                    "Egypt_Gravestone"
                ],
                "Properties": "RTID(GridItemGravestoneCustom@CurrentLevel)"
            }
        },
        {
            "aliases": [
                "GridItemGravestoneCustom"
            ],
            "objclass": "GridItemGravestonePropertySheet",
            "objdata": {
                "ArtCenter": {
                    "x": 98,
                    "y": 127
                },
                "BreakEffect": "POPANIM_EFFECTS_TOMBSTONE_EGYPT_HIEROGLYPH_DAMAGE",
                "BreakEffectSound": "Play_Zomb_Egypt_Grave_Crumble",
                "DamageStateCount": 5,
                "HitRectOffsetWidth": -30,
                "HitRectOffsetX": 15,
                "Hitpoints": 9001,
                "PopAnim": "POPANIM_GRAVESTONES_EGYPT_HIEROGLYPH",
                "ScaledProps": [
                    {
                        "Arg1": 1.3,
                        "Arg2": 0.05,
                        "Formula": "standard",
                        "Key": "Hitpoints"
                    }
                ]
            }
        }