TOPIC: Altering DT Donate Labels & Custom Add-Ons

We are currently using the latest version of DT Donate on our website and my supervisor has asked if it is possible to change certain field labels and possibly add a "total" calculation feature at the bottom of the "Recurring" payment option.

We would like to know if it is possible and how to change the "One Time" and "Recurring" labels. We would like to rename "Recurring" to "Pledge".

We also would like to know if we can add a feature which calculates the total amount from the recurring payment fields in order to give people an idea on how much they will be donating according to the frequency they select.

We are using Authorize.net for our payment transactions if this helps us in finding out an answer if it is possible.

Thank you.