Hi,
Thanks for using our plugins. I can help out here.
We do not have a solution to bulk resend ticket emails.
I looked up in WooCommerce and could not find a way to bulk resend their emails as well.
I found some user submitted ideas to have that feature, but they look to have gone no where.
It might be possible to create some coding to do this, but I do not have information on that unfortunately.
Let me know if you have any follow up questions.
Thanks