Sales Receipt from a Receipt Printer

I feel like I am missing something.  Our old simply was set up with a receipt printer that printed an itemized receipt like you would see in any retail store.  The printer uses a 3 inch wide tape and there was a template in the old version but unfortunately that computer is gone and I cant look for it.  I am trying to modify the invoice template with the Forms Designer and I can modify everything except the column width.  I have seen online instruction to look for column width options but I cannot find that.  I am using Sage 50 Premuim Cloud.  What am I missing?  Am I trying to print this the wrong way?  Thanks  Susan