Hi @gr8lakes,
We have tested Copilot4Eclipse with CDT but not Momentics. If your version of Momentics is based on the Eclipse Platform 4.28 (June 2023) or greater then there is a very good chance that Copilot4Eclipse will work in your environment. Also, ensure that Nodejs v18 is compatible with your version of ubuntu. Internally Copilot4Eclipse runs a client api using an embedded version of Node 18.
Let us know how it goes?
Wayne
Copilot4Eclipse Team