So you need to add the cron-job below:

# wget -O /dev/null  'http://yourwebsite.com/?rets_purge_cron_job=1' 

OR

# curl --silent  'http://yourwebsite.com/?rets_purge_cron_job=1'

Note: You can set the update time to run every 15 minutes.

Note: If your website uses https:// protocol, then you should change the links accordingly.

You can enable this feature simply by setting User URLs option to WPL URLs in WPL->Settings->Membership->Users Section. We explained this feature more complete on WPL Membership manual.

Note: If you're using a maintenance plugin for temporarily blocking your website for public users, Then make sure that your plugin supports the login URL correctly. Some plugins only know WordPress default login URL and block other pages so they may block even yourself from logging in to your website.

1- First of all, you need to enable the feature. For enabling it, you can navigate to WPL->Settings->Global->APS addon and set Landing Page Generator to enabled.

2- In the property search page of your website, filter the listings as you like. For example you can use WPL Search Widget to filter the listings or use Map search of APS addon to filter the listing by a certain location. Also you can sort the listings and set the page size option if you like.

3- After all, click on the Landing Page Generator button below the sort options.

Note: Only users who have "Landing Page" access can see this button so don't worry about your website visitors, they don't see it. If you don't see the button yourself, then please enable "Landing Page" access for your own user. You can check WPL user accesses article for more information.

4- Insert a proper name for the landing page describing the listings that you filtered.

5- Then the APS will generate the page and provide you two links. One is the page link that you can share it with your clients and another one is edit link of the page. You can use the edit link to adjust the page if you like. Also you can see the generated landing page in your WordPress->Pages menu and you can always edit it or remove it if needed.

Note: It's up to you how to use the generated landing page. You can create marketing campaigns, share the link on the social networks, send the link by emails etc.

This feature needs WPL Complex add-on.

This feature needs WPL Advanced Portal Search (APS) add-on.

You can then set default values to show in the Mortgage Calculator on the frontend. 

Down Payment Type, Tax Type and Insurance Type have options to show Percent and/or Amount fields in the frontend. You should select the "Both" option if you want to show both Percent and Amount fields and the Amount field will be set according to the percent value.

Now you can see the mortgage calculator at the selected position.

If you want to include these fields in your  search widget, you should enable desired fields in search widget first. For this you can go to WPL->Flex->MLS Addon or WPL->Flex->Importer addon and click on edit icon of desired fields and set Search widget option to "Show" instead of "Hide". Please check below figure.

You can simply search about "WordPress Multisite Domain Mapping" on the Google but you can find below article as well.

http://code.tutsplus.com/articles/wordpress-multisite-beyond-basics-essentials-and-domain-mapping--wp-24452

WPL APS addon has a feature for loading the new results by AJAX (Without refreshing the page). You can simply enable it by navigating to WPL->Settings->Global->APS addon and settings AJAX Listing option to enabled. Please check following figure:

App Secret

In the following, we will explain how to get these credential.
Firstly, make sure you have account on https://developers.facebook.com/ and https://business.facebook.com

Application Setup

1. Create a new application if needed with Business type.
   
   
2. Fill the form and select a business manager account.
   
3. Setup Marketing API.
4. Go to https://business.facebook.com/settings/ and select your business if not selected.
5. Click Users -> System Users and then Add button.
   
6. Insert your desired name and select Admin as user role and create the user.
7. Click the Add Assets button.
   
8. Select your Facebook App and enable the permissions and then save changes.
   
9. Click the Generate New Token button.
   
10. Select your app and enable all possible permissions and then save the form.
    
11. Copy the Access Token.
    

Credentials

1. Go to https://developers.facebook.com and select your App.
2. Navigate to Settings -> Basic. You can see App ID and App Secret here.
3. Go to https://business.facebook.com and select your business.
4. Click Settings and then Business Account Info. Your Business ID is here.
5. The Access Token is what you generated and copied in step 11 above. You can debug your access token in https://developers.facebook.com/tools/debug/accesstoken/ page to make sure it works fine.

Usage

Ads on Facebook

1. Go to https://business.facebook.com/settings/ and select your business if not selected.
   
2. Click Data Sources -> Catalogs.
   
   
3. Then select your catalog and click Open in Commerce Manager button.
   
4. Click Catalog -> Items menu and then you can see the listings on the right.

CSV (Comma Separated Values) file should be separated by comma not semi-colons. Also if a column has comma in its value it should enclosed by " characters.

Also only one integration will be done by Realtyna and Realtyna is responsible for one XML/CSV integration so if you want to integrate more than one feed into your WPL, you should do it yourself or purchase a new integration service from Realtyna.

To enable user auto add feature: Go to WPL -> Settings > Membership > Users Section.