/// migrate((app) => { const collection = app.findCollectionByNameOrId("pbc_4163081445") // remove field collection.fields.removeById("bool849764742") return app.save(collection) }, (app) => { const collection = app.findCollectionByNameOrId("pbc_4163081445") // add field collection.fields.addAt(8, new Field({ "hidden": false, "id": "bool849764742", "name": "hasDocument", "presentable": false, "required": false, "system": false, "type": "bool" })) return app.save(collection) })