If you have clients whose books you only do quarterly, you can mark them as Quarterly Clients. Quarterly Clients will only be prompted to start a new close on a quarterly basis (Q1 in the March close, Q2 in the June close, etc.).
How to mark a client as quarterly
Go to Practice Settings (⚙️ icon)
Click All Client Settings
Check the Quarterly box for any client that is quarterly
(Right-click to enlarge)