Hey Leigh,
You can definitely make such changes – however, they’re a bit tedious to make, to be honest. You’d have to edit core admin-views directly in the plugin code, which means that before updating to the next version, you’ll need to back up your changes and then manually add them back in after the update 🙁
But the gist of making such changes is just to head right into the plugin files and navigate to the /src/admin-views folder. This is where the admin templates all live. For example, to change the “Select a state” text to “Select a county”, head to /src/admin-views/venue-meta-box.php and head to around line 92 or so to find that text to change there.
There is a secondary option, which still requires custom coding, but relies on filtering the gettext strings instead of making manual file edits. So this might be more appealing since you won’t have to manually edit the files after each plugin update.
Check out this method here: https://theeventscalendar.com/knowledgebase/change-the-wording-of-any-bit-of-text-or-string/
I’d personally recommend doing what you can with the second option, and then if you can’t change a specific change somewhere for some reason, fall back to the first option and just note the change and keep a backup somewhere for easy access.
I hope this helps!
— George