I'm still plodding away with this, eight months on!

The pdf *is* helpful, but it's not specific to my model and doesn't cover everything, nor does it explain how to use the different functions.

I've worked out what some of the keys do: it helps that pressing key inappropriately produces an audible "beep". If anyone knows how to use the ones that I'm stuck on, I'd be very grateful.....

The yellow "X" key sets the X-axis counter to zero.

The yellow "Y/Z" key does the same for the Y/Z counter.

Of the blue keys:

Top row, key 1, marked I/A, selects between incremental and absolute measurement.

Top row, key 2, marked with a solid inverted triangle. Turns on a little green LED adjacent.

Top row, key 3, marked with a pictorial of an end-mill (?) and a workpiece (?). Turns on a little green LED adjacent.

Key 2 turns off key 3's light and vice-versa, so whatever they do, they're mutually exclusive.

Top row, key 4, marked "HOLD" I don't know what it holds.

Second row, key 1, marked "X", allows data input into the X-counter.

Third row, key 1, marked "Y/Z", allows data input into the X-counter.

Fourth row, key 1, marked "ON/OFF", turns the unit on and off

Fourth row, key 2, marked "UNIT", selects between mm and inch display

Fourth row, key 3, marked to suggest that it's for making sequential cuts, turns on an adjacent LED, but I cannot work out how to use it.

Fourth row, key 4, marked to suggest that it's for cutting at several points around a circle, I have worked this one out. It also has an adjacent latching LED and it and key 3 are mutually exclusive.

Fourth row, key 5, marked "1/2", when either the X or Y/Z counters are accessed, this key halves the counter's value.

Fourth row, key 6, marked "CE", appears to cancel the last key entry.

Fourth row, key 7, marked "LOAD", seems to function as an "enter" key. Also used to toggle between co-ordinates when working around an arc or circle.

If anyone has a clue, please let me know.

Many thanks,

Nick