WP Ultimo: Ad Injector is a free add-on that gives you the tools to place ads on your plans right from their edit page.
After installing WP Ultimo: Ad Injector, go to your Plugins page to activate it.
Click the Network Activate button
Once the add-on is active, the Advanced Options meta box on the plan edit screen will have a new option called Ad Settings.
Now you can edit ad settings for each of your plans
On that tab, you’ll be able to add the ad codes for posts and pages in the front-end, before and after the content.
After inserting your ad's code, it will show on the posts and pages of that specific plan.
You can also have ads included on the header of Admin Pages for users of that plan.
Go to the Admin Panel Ad Code option if you want to display ads on your user's back-end
Beyond Advertising
You can also use WP Ultimo: Ad Injector to offer support to high-tier plans.
Just go to Admin Panel Ads option and add the HTML code for your support tool.
Add customer support to specific plans
This way people can reach you right from their Admin Panel!