(Feature Request) Appointments plus, great but can we change the "provider" and "serv

Hi. Firstly let me say what a great plugin appointments + is!

However it could be greatly enhanced by being able to change the generic terms of "service" and "provider"
i.e. In the case of a hair salon you may want "Hair Treatment" and "Stylist or in the case of a beauty salon, you may want "Treatment" and "Therapist" and so on.

If this could be incorporated into the settings panel where a field would let you input the alternatives to "service" and "provider" it would facilitate the plugin being much more tailored to suit the business in question and a lot less generic.

In the meantime is it possible to change these titles on a per site basis?

Thanks in advance.
Regards Wayne.