It is very simple to active User Home on your Synology NAS Ds713+ and you will need this for several of the packages offered like CouldStation and installing your own wordpress site.
Here is how you do it:
You will need to activate “User home” if you haven’t done it yet. It is so easy that I will show it here directly:
1. Go in to your NAS DSM, which is the administration web interface and you will access it by writing in your browser: http://nameofyoursynology.synology.me:5000 or http://synologyIPaddress.synology.me:5000
2. Access your control panel 
synology button through your menu button:
3. Click on users under the File Sharing and Privileges category in the control panel:
4. and then click on the “User home” button to enable this function:
Activate the service in any of your hard drives and you are done!
You can now install wordpress in your nas among other things.