In order to access your Gridhost cloud DNS service and copy your records from your Client area/tsoHost account, you will need to use the following guide:

Sign in to your Tso Client Area: https://my.tsohost.com/clientarea.php

Afterwards click on Products

Products> click on the green active button next to the addon.

Afterward, click on the Login to DNS control panel button.

From there you need to click on Manage website>Custom DNS.

You can copy all of the DNS records you will need from your portal.