Thanks Michael for the latest Beta
In case anyone is interested , on the windows version to easily get my Moi beta back up and running with scripts and custom UI I do this

from the old beta version ( call it old ) I
Copy sidepane.htm from old UI into new UI (mine opens construct and transform at once).
Copy saveas.js and save.js from old commands into new commands overwrite the new ones (mine save a jpg also).

Copy all of the commands folder from old into the new commands folder but do not replace or overwrite anything in there.
This puts any commands you use like ringcircle etc in there

I copy the following so I know where they are.
Copy your moi.ini into the main moi directory of new
Copy your template file in there also
Copy your licience key into moi directory

Installation: of custumui.
- Backup /ui/CommandBar.htm (I just copy to the desktop)
- Extract CustomUI archive into the MoI directory

delete objects in new objects folder
Copy your objects from old objects file to new objects
copy snapshot.htm from old customui to new customui (mine is set to save as a jpg)
rename any parts of custom UI with a - in front that you don't want (I don't use the align buttons)
cheers
shayne