Edit view does not allow more than two columns


Im trying to build a custom module. I need nearly 10 columns in the view but, i can just add two columns. Is there a way I can increase the number of columns in my edit view of the module?
Im basically tryingt o put in this type of view:
Item: Item1 Item2 Item3 Item4
Quantity: q1 q2 q3 q4
Price: p1 p2 p3 p4

But Im only ablt to achieve:

Item: Item1 Item2
Quantity: q1 q2
Price: p1 p2

Pls help