Libreoffice with Thinkorswim RTD (real-time-data)

Libreoffice with Thinkorswim RTD (real-time-data)

Currently I’m using the latest version of Libreoffice, trying to use TOS RTD, not functioning…
I am aware I need to have Thinkorswim platform open while using Libreoffice and TOS RTD.

Do I need to download an extension for LO and TOS RTD to be compatible?
LibreOffice Calc TCP to RTD

if I need the above extension to use LO and TOS RTD, is it safe, has anyone else used?

Thank U.

LO v7.6.2.1