Q: Can Different Calendar be used for Secondary Ledger in Lease Management

Team, 

My client would like to map transactions to the Primary and Secondary ledgers using two calendars.  One would have a 4-4-5 calendar, the other would have a monthly calendar.  With the four C's mantra, I didn't think this was even possible, however the R12.1 GL Implementation Guide suggests the opposite (Page 1-110) as the client pointed out:

The secondary ledger is an optional, additional ledger that is associated with the primary ledger for an accounting setup. Secondary ledgers can be used to represent your primary ledger's accounting data in another accounting representation that differs in one or more of the following from the primary ledger: