"Our communication is not that complex."

That isn't the point. This topic for Text Box is for what I showed in my attachments. Example: You need to provide your Business License # on everything = you create a Text Box, you hardcode that info, and now this is Always going to print on the invoice, sales receipt, estimate, etc. You make a Text Box for your estimates where you Warn people: This quote expires 60 days from the date above.

"We are locksmiths and the scope of work is generally a few short sentences"

Are you using Items? You list your Service Item for the scope of work, such as:

Install (for a Lockset), .5 hour $80; Description = drill and fill, strike plate included.

That is Service Item, not Document freeform text.

Then, Noninventory item = New Lockset with separate deadbolt; as opposed to the one you might offer to me that includes integrated deadbolt. And Description = Lockset with strike plate.

"and comes in an email (I haven't checked yet but it is unlikely that would be easily attached.)  What we are looking for somewhere to cut and paste instructions into the actual Work (Sales) Order."

Again, this is not the place for Instructions, beyond some applicable info. I pointed out already that Description allows for 4,095 characters. If you cannot fit that into:

Service Item "Install" and then, example: Lockset, provided by homeowner. Drill and fill, strike plate included. Does not include repairing old holes, repaint or replacement of door or trim; any prep work to be done by homeowner.

And the Noninventory item = Lockset. But in the description you also put: Kwiket #123456, Brass finish, ADA compliant XXX offset, etc.

It's not a Text Box. It's part of the Scope of Work.

"These guys are short order cooks not chefs. Their expertise and desire to use a complex work order system is very low."

Up to 4,095 characters. It's part of Description. Not a Text Box.

Please see my attachments. I already showed Text Boxes; they Display. What you are asking is Memo/Description for the Items.