How to add custom link to the right sidebar on the pag?

Before editing or replacing files, strongly recommended to create backup of your files!

You can download attached files. Just replace original files with this one:

1) file page.php (it lays in directory \wp-content\themes\getphoto\includes\acf\page-templates\);

2) file helpers.php (it lays in directory \wp-content\themes\getphoto\includes\);

3) file main.js (it lays in directory \wp-content\themes\getphoto\js\).

Now you can add own custom link to page you want.