First and foremost, welcome to the forums and thank you for choosing PRO!
The way you can achieve what you need would be to do a template override as explained in our Themer’s Guide. Basically, you’ll be copy/pasting the contents of files you want to edit and saving them in a folder named tribe-events which you’ll create and save inside your theme folder.
If you need any specific instructions, such as where certain code/files reside, please feel free to respond and I’d be happy to provide more assistance. Again, we truly appreciate you choosing PRO for your events calendar needs and have a good rest of the day!