Hi Balazs,
having my very first play with the UCR201 (UCCNC in demo mode on my office PC).
By the way it took just 4 days to arrive with DHL Express, awesome.
One of the main attractions of the wireless pendant was dealing with tip ups in a long arty cut. Press the stop button, pick out the tip up, and restart. However, something which came as a surprise was that if the stop button was pressed more than once the gcode file rewound back to the beginning, definitely not something I'd want in the middle of a cut. It would be easy to accidentally press the stop button more than once in a "panic" situation.
The stop button on the main screen does not do this.
Keith.