2 Column Archives in Sidebar

Hi everyone

Does anyone know if it’s possible to create a two column archives in sidebar?

If you visit my site (you can visit it in here https://www.sitethumbsup.com/) , you will see the archives (“Arquivos”) on the sidebar and that block has many space for another column for archives. I wanted something that would divide that column in two (not like the two upper blocks “Membro” and “Marco Almeida”) in an automatic way.

I’ve modded an image so you can see what I’m saying:
https://i513.photobucket.com/albums/t338/marcoapaulo/soltas/archives2column.jpg

Do you think it’s possible?

Thank you in advanced