Statements by email

SOLVED

I'm using Timeslips Premium, build 29.0.0.42.  I prepare a statement, finalize it, then email it to client.  If there is no activity during the month and I want to send him a statement the next month, will I be able to?  I tried a few months ago on the previous build and I was unable to create a new statement since he didn't make a payment and there was no new invoices.  Since there is no way to undo a finalized statement (is there?) I don't want to test it.

Unfortunately I have several clients that don't pay monthly even though I send them monthly statements.

Thanks for your time.