Using CoursePress Pro plugin with other themes?

I know this is out of the box ... but ... I would like to use a Customizr child theme with the CoursePress Pro plugin. I'm a coding novice.

Most pages and functions seem to work just fine, but I'd like to control the appearance of certain pages, such as the course lists and individual course pages. Can this be done without breaking the plugin?

I'd like some guidance about how to set this up properly, and so that upgrades to the plugin will not affect changes I make. I am open to receiving recommendations for an expert consultant if this is outside the parameters of this support forum.

Thanks.