Hi Rosa.

It is definitely possible to include additional code inside the project through the dedicated areas inside the software such as this:

Or even after publishing the project.

Of course if done through the software, it is possible to edit the project again inside the latter, if you decide to do that on the final files, you will not be able to continue editing the project inside the software and will have to readd the code manually after every export.

Unfortunately for any issue occurring during the implementation of third party codes, we cannot provide support.

But should you need any clarification on where to insert it, please let me know here

Thank you

Stefano