how to dimensiona a line or for example a rectangle?

I want to make a rectangle of 147 x 592 how can I insert those numbers?where?

(I've a mac version  1.0.1)

thank you!

 

# open Librecad
#hit "Ctrl+M" on your keyboard
#type: "rec"  (without the qoutes)
#hit the enter key
#type: "0,0"  (without the qoutes)
#hit enter key
#type: "147,592"  (without the qoutes)
#hit enter key

btw. LibreCAD version 1.0.4 is available
  -> check if 1.0.3 or 1.0.4 is available for your operating system http://librecad.org/cms/home/installation/osx.html
(on 1.0.1 there may be a problem when saving your work -> make sure .dxf is selected)