Hi, thanks for help, it works
! But 0.15 dev version doesn't have assembly module (icon doesn't response) and also no drawing dimensioning is available. Is this still not implemented?
Assembly is in a separate development branch that may be pushed into master after 0.15 is finalised or maybe later. It brings a lot of changes and some compatibility issues. You can still assemble things in standard FreeCAD versions but only manually i.e. not with something like constraints. You can move shapes around with Draft Move and snapping, but it is not parametric.
Drawing dimensions are available in master and have been for a long time, but they work from Draft dimensions. You create a Draft dimension in the 3d model window and then click on the "toDrawing" icon in the Draft WB tool bar, and it is placed in the Drawing. These dimensions auto update in the drawing if changed in the main window. The dimensions can be linked to geometry, e.g. linked to an edge and then change along with any change to that edge. The new drawing WB upgrade that MrLukeparry is writing will allow direct editing and creation of dimension in Drawing WB.