Changing the priority of calenders?

[iRevo]

Hi,
Im using the S Planner on my phone and i have two different gmail account with calendar events. Right now the first account has its calendar events put in first in the S Planner month calendar, and its blocking my view of the second account events which are more important to me. How do i make it so that it will show the second account's calendar first before showing the first account ones? Thanks