Open these instructions on a separate device, like a tablet or phone, if possible.
On your main device, login to your Facebook account.
In the upper left corner of the screen, next to the Facebook logo, type "Woobox Custom Tab" in search field and select the Woobox Custom Tab option. If there are multiple options for "Woobox Custom Tab", select the "app" option with the image of two spotlights shining upward.
Click the Install Page Tab button. Select your business page from the Choose Facebook Pages drop-down list. Then click the Add Page Tab button. It should have created a new tab on your business page.
Click the Configure Page Tab button. In the App Terms and Privacy pop-up windows, click Okay button to allow Woobox to create a new tab. There may be more than one pop-up window.
Once on the Woobox admin page, select the Tab Settings option on the left sidebar. Type in a new Tab Name--something like "Virtual Tour" or "See Inside". Click Save Settings button. Click the Edit option on the left sidebar.
GETTING GOOGLE TOUR CODE
Open a NEW browser window and go to maps.google.com
Search for your business, then on the left side of the screen, click on one of the images with a circular arrow in the bottom left corner. Using the arrow keys or your mouse, move around in the tour until you have the view that you want to display on Facebook.
Click the three little dots in the upper left area of the window and select the Share or Embed Image option.
From the little pop-up dialogue box, click the "Embed a map" tab. To the left of the iFrame code is a size drop-down list, which the default is set to Medium. Select Large. (You can adjust the image further in this window before selecting and copying the embed code.)
Click "Copy HTML" located to the right of the embed code.
ADDING CODE TO TAB SETTINGS
Return to the Woobox edit tab content page (html fangate tab). Paste the iFrame code into box in the Page Source section (you may have to use a keyboard shortcut or menu option to paste the code). If you copied the code correctly, it should begin with "<iframe" and end with "iframe>". If it doesn't have both "iframe"s, go back to Google maps and copy all the iFrame code.
At the bottom of the screen (you may have to scroll down), click the Save Settings button. If it asks for permission to make changes to the Tab Name, grant the permission.
In the upper left corner of the window, click the View Facebook Tab link to be taken to your new Google tour Facebook tab. The virtual tour should be visible and the tab name should be what you decided.
In the upper right side of the page, click the Settings button.
On the left side of the page, click the Edit Page tab.
From the Tabs section, click the three short horizontal lines to drag your new virtual tour tab so that it is just below the About tab and click the Save button.
Return to the business homepage on Facebook. The Google tour tab should be located to the right of the About tab and when clicked on, it should display the tour.