Step::1 Login to your WHMCS.
Step::2 Now go to Setup Section and click on General settings.
Step::3 Now scroll down to the bottom of the page and look for Records to display per page option.
Step::4 Select the numbers for the drop-down panel.
Step::5 Click on Save Changes.
That's It !Check the video tutorial to get in-detailed procedure. You may read the blog as well.