On the main mask you can see which cash limits you should play selecting the tab STT (Single Table Tournament) or tab MTT (Multi Table Tournament):

 

Here you can see max buyins for DoN (Double or nothing), SnG (Sit & Go) or Spins for STTs.

DoN would be recommend max 104.73$, SnG 52.37$ and Spins 104.73$. If you want to adapt this values you can edit them here.