How to use older dash boards for your dota 2 client:

Go to library, right click dota2 - launch options:

Dota dashboard launch options: -dashboard international_2012 -dashboard international_2013 -dashboard frostivus_2013 -dashboard spirits_2013

#TI2012Dashboardlovah!

If you feel like trying some next lvl shit, then type: -dashboard international_2011