O-S-C on touchscreen (OSX)

I’m currently trying to run O-S-C to control Ableton from an external touchscreen. I have the Touchbase UPDD running to enable multitouch OSX gestures but can only enable one widget at a time (as if I were using a mouse).

Has anyone had experience using a touchscreen with O-S-C that doesn’t remotely access the server via a browser?

Just to be clear, i’m not using a tablet. I’m using an external touchscreen display!

Like this one:

Yes, OSC support (multi) touchscreens, but I don’t know about configuring osX so that the multi touch works.

http://support.touch-base.com/Documentation/50584/Browser-TUIO-interface

You may need to use a browser with this extension installed instead of the default client.

Thanks for your reply, Jean-Emmanuel!.. and thanks again for making such a great system.