Thank you for reaching out
To set up the different currencies and recurring payments by your own, you, first of all, need to be at least an Advanced Bubbler. This is a common recommendation for everyone who would like to set up his template according to his preferencies.
To level up your Bubble skills, it would be useful to go through these courses:
Completing these courses will help you to be more independent and confident in customizing your apps and plugins.
Second of all, I recomment you to check the Coursely template documentation:
Here you can find the advanced information on the workflow setting up of this template.
To set and display the prices of courses in different currencies, you may need to adjust your app database and set the design part. The way you set it up depends on you only and your creativity
To set recurring payments for courses as well as one off payments, you should decide what kind of payment system you want to use. The Coursely template works on Stripe and Braintree (for PayPal). You may need the information on APIs adjusting, so check these links:
I hope my reply could help you on your way
Stay safe. Best wishes,