I hope this is the right channel to post a question.

I have used Avogadro in the past, and very much liked its usability, first in Debian, then on Windows. The features I enjoyed were that it has an excellent, intuitive interface and that it just works, so it’s an excellent recommendation for students!

Most recently, we tried installing from a package on Ubuntu 20, and want to use it for teaching a class. Apparently, the version currently packaged on Ubuntu is Avogadro2 rather than Avogadro v1. This is somewhat of a game-killer for us, because the geometry optimization is more hidden (and I can’t find the conformational search anymore) and, most importantly the extensions for interacting with, e.g. GAMESS, seem to be completely missing.

• Is there a way to get a packaged version with the features of the v1 interface, or do I have to build from source?
• Given the features we are looking for, are we better off rolling back to v1 (and where would I get that?) or is there a version of v2 that does include the features we are looking for?

Many thanks in advance, and apologies in advance if I’m missing an important point about the different versions!

## Environment Information

Operating system and version: Ubuntu 20

## Expected Behavior

An extension menu like the one shown here

## Steps to Reproduce

apt-get install avogadro

apt-get install openbabel