two interconnected columns list

[garretblake]

Hi guys. I want to make something but don't know if it's possible. I want to create a two interconnected columns list. Image that the first column can receive 5 lines ( that would be links) and after that limit, the other links passes to the next column. After the second column takes the 5 links, the two columns begun to grow in height, putting one by one in each column.

don't know if I was very clear.
Hope someone can help me on this one,
Thanks