Hi Elang,

re:
> Also, Michael... IMHO, most of Moi users will expect that the '<' input tab should> consider the starting point of line creation rather than 0 is the +X axis (?).
> The '>' tab almost never used for rotation purpose, isn't it? Or maybe it is just me... ^^

The current behavior to use 0 being the x axis is modeled after polar coordinate entry in AutoCAD.

> I think something like r99 (turn right 99 degree) or l99 (turn right 99 degree) should
> be convenient and easy to understand.

That seems good, then it could also work to give a distance value like 5r99 = distance of 5 from the previous point and angle of 99 degrees from the previous line.

- Michael