A/R Customer Reports - Statements / Letters / Labels can i re run this after I print it?

Hello,

I was warned that if I go to A/R Customer Reports and then run the Statements / Letters / Labels, that I won't be able to run it again. The person telling me this said it's a one and done thing.

My question is how often can I run it? I noticed when I closed out of the print preview it asked if they printed correctly and I could select yes or no. I selected no and then it gave me an option to select each specific customer that did not print correctly. I selected all and I think it will let me reprint. 

What would have happened if I said yes.  If it let me print again, will it only show new invoices since the last print date or will it include all outstanding invoices (not just new ones)?

I want to be able to run this whenever I want. To send out statement of accounts for outstanding invoices, both when customers call and ask for one but also to all my customers on a regular basis. 

I know i could just run an AR aging and send them that, but this one puts it on an official statement. 

Thanks for the advise.