Setting a different format for @timestamp

I am new to Filebeat and I am wondering if there is a way to have a different format for @timestamp field in Elasticsearch.

"@timestamp" : "2019-02-01T10:52:29.852Z",

Can I force the format to something like yyyy-MM-dd HH:mm:ss z||yyyy-MM-dd||epoch_millis||yyyy-MM-dd HH:mm:ss.SSS z, which is already used by other indices in ES?

Thank you in advance.

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