Base angle

Base angle in LibreCad 0 is towards East and I work with other Cads with base 0 towards North.
Can it be changed? and How

Can you help explaining in details how this new feature shoudl be like?

I am new in LibreCad, I draw in Turbocad Windows the base angle default (0) is the same as LibreCad towards the screen right (East). TurboCad as a option to change the base angle according to ones which, I always work with base angle (0) towards screen top (North), with “Line with Given angle” entering angle: 0 and distance: 25 the goes towards the right, I can't find a option to achieve this in LibreCad. I appreciate if you could help me with this.
The other matter is in “line with two points” entering 25,0 (witch is distance 25 angle 0) it goes to a very odd way, down left, I don't understand this.
Can your please explain.  

no, "25,0" gives you cartesian (25, 0)

to use angle (math convention, zero degree to the right), use "25<0"