Using nested tables

Hi experts,

is there a way of using nested tables, for example:

Field1

---value1-1

------example1-1

------example1-2

------example1-3

---value1-2

------example2-1

------example2-2

------example2-3

------example2-4

------example2-5

---value1-3

------example3-1

------example3-2

Field2

---value2-1

------example1-1

------example1-2

...

Or isn't it possible?

Thanks

Michael