Show full post instead of excerpt

I don’t know if there’s an option for this in that theme. I recommend asking at https://wordpress.org/support/theme/oceanwp#new-post so the plugin’s / theme’s developers and support community can help you with this.

If not, you’ll have to create a child theme and change the template for that page to use “the_content()” in place of “the_excerpt()”.

Yes you do. It’s just part of this forum. You’re posting here, you can post there. If you’re getting a warning about having already posted, that’s the spam filter. Make a few changes to the content so it’s not an exact dupe of your post here.

Scroll to the bottom of that page.