You cannot create batch estimates as you can invoices - meaning in one action create identical estimates for all customers. You can batch send all of your estimates by selecting email later and then through Send Forms you send them all in a batch.

You can create one estimate and then make a copy for each customer, and you can also memorize customer estimates to autopost on a recurring basis

There may be options in the app store that will integrate with QBDT and at same time be cost effective for you