Press F10 to enable text input. The format is as follows (square brackets mean optionality):
- Class:
class Name { atr1: typ1 atr2: typ2 etc. } - Relation:
rel [AssocNom] { class1 multlower2 multhigher2 class2 multlower2 multhigher2 class3 multlower3 multhigher3 ... }
As soon as the input is correct, the schema on the left will be redrawn to match. Classes may be dragged around and positioned as desired. To save, press C-s.