look this thread who expain why there is no Bezier curves (& handles) in moi :)
http://moi3d.com/forum/index.php?webtag=MOI&msg=290.1

The trim command is Menu / Edit / Trim
This function Trim can also make the function "Projection" till the next release !
http://moi3d.com/forum/messages.php?webtag=MOI&msg=286.1