How to disable file sharing in PocketCloud Companion

How to disable file sharing in PocketCloud Companion

When PocketCloud Companion is installed and setup to automatically login, file sharing is enabled by default. I tried deleting the shared folders in Companions settings, but it wont save the settings. The folders keep coming back, and are fully accessible from my iphone with no addition password. I want to install the companion client software on a pc with filesharing disabled. I only want to use the Remote Desktop rdp feature on the clients. Is there any way to disable file sharing on the companion pcs?