Step 1: Login to Facebook page. On page tabs click "More" with dropdown option and click on "Find More Apps" .
Step 2: Click on "Search for Apps" on left hand side bar below App center.
Step 3: Type "staitc HTML" in seach bar. "Statc HTML:iframe tabs" app will show up. Click on that.
Step 4: Click on "Use Now" button on Static HTML app page
Step 5: Select your facebook page from "Choose Facebook Pages" drop down menu
Step 6: Click "Add page Tab" from the box
Step 7: Click on "Add Static HTML to a Page" On Static HTML app box
Step 8: New Tab is added with default name "Welcome" on your Facebook page. Name of the tab can be changed later. Click on newly added tab .
Step 9: Click "Edit tab" option.
Step 10: In "index.html" tab, Copy & Paste Contentplum widget embed code. Cick "Save & Publish" top right corner.
Then click "View tab in Facebook" . Your Contentplum widget will show up on newly created tab on Facebook page. That' it.
Follow next step to further customize and control facebook page tab.
Step 11: Click on "More" dropdown on facebook page and click "Mangage Tabs"
Step 12: You can drag newly added tab to reorder on facebook page. Click "Add or Remove Tabs" to go to Tab settings page
Step 13: In Added Apps, Find Static HTML app. And click "Edit Settings".
Step 14: Edit Tab settings to control visbilty, Image and Name of the tab
Click "Remove" if you don't want to display new tab on facebook page