I installed the latest BOA-stable and after it RVM with Compass and SASS. According to the changelogs of BOA-2.0.4, I should be able to use Compass commands:
Allow all standard compass/sass commands in limited shell.
As root, I am able to execute 'compass watch', but I am not with the limited shell (as user o1.ftp). It says:
sh: 1: compass: not found