``` javascript
var config = rs.config()
config.members[0].tags = [{"normal" : "A"}]
config.members[1].tags = [{"normal" : "B"}]
config.members[2].tags = [{"normal" : "C"}]
config.members[3].tags = [{"normal" : "D"}]
config.settings.getLastErrorModes = [{"visibleMajority" : {"normal" : 3}}]
rs.reconfig(config)
db.products.insertOne({ "_id": 10, "item": "envelopes", "qty": 100, type: "Self-Sealing" }, { writeConcern: { "w" : "visibleMajority", wtimeout : 1000 } } );
```