Do you know extension that will send an email from the order grid which I can chose from email templates list on 1.9.X ?
Which kind of information do you want to dispatch from the admin grid?
Not sure what do you want to achieve, but following extension allows you to send emails from admin, learn more about how you can send emails,
You can try the following extension from FME.
It allows you to send auto reminder emails in case a customer leaves with abandoned cart. The aim is to motivate such customers to complete their order. You can view all the abandoned cart entries and send reminder emails from this grid.