Item Types - Picklist or Expressions

Hi, 

I'm wondering if it's possible to create such a Item Type list from Excel with different dependencies.

Where the user select for example level 4 he only sees 4.a |/ 4.a.1 and 4.a.2 etc 

Or if I select "System Nr." | 103 - Baan Voorziening the field for  "Basisobject" shows only Baanvoorziening

Thanks in advance

//Christiaan