The Trainers Settings section in the Gym & Fitness theme Customizer contains 4 options. Navigate to Appearance → Customize → Theme Options → Trainers Settings to access these settings.

Options

• Trainers Per Page (Number) — Number of trainers per page.
• URL Rewrite Slug (Text) — Custom URL slug for trainers.
• Category URL Rewrite (Text) — Custom URL slug for trainer categories.
• Trainers Header Image (Image) — Header background image for trainers archive.

After making changes, click Publish at the top of the Customizer to save your settings.