Under the FAQ tag on the McTabs main page, you will find:
Under your development environment(localhost server or local file path), you can temporarily set the license as "6580t" to disable the purchase reminder.
If your question is related to the topic of this post, you can post your question to this page by clicking the "Post a reply" button at left;
If your question is related to the Responsive Tabs, click:Ask new question: Responsive Tabs
Otherwise navigate to one of the following forum categories, and post your question there.##