Hi @pberna67,
Could you confirm that you are running FreeMASTER Lite version 1.5.1:

and that the Node-RED version is 4.0.9:

I did a clean install and could access the `Manage palette` option.
A quick check - could you try removing (or renaming) the `.node_red` folder from your user folder to make sure that any older Node-RED settings do not interfere with the latest installation.
If that does not help you could you provide additional details:
- Are you running FreeMASTER Lite from the stand-alone installer or the one bundled with the main FreeMASTER 3.2 ?
- What is you host OS system ?
- Do you have any external Node-RED installations ?
Kind regards,
Iulian