export using proxies

In Media Encoder, I can see that there's a checkbox that offers the option to "Export using proxies". However, I don't see the option when I set up the export in Premiere. I can "Send to Media Encoder", then click on the link in "Preset" to get to the checkbox. But, a lot of times, I'm exporting a batch of clips (Sending to Media Encoder from Premiere), so it'd be helpful to have an "Export using proxies" checkbox in Premiere.