Indesign template required text block

Hello,

I'm creating an InDesign template which will contain a lot of text that doesn't need to be changed.  However, there is certain text like "project name", "project address", etc., that needs to change per project.

Is there a way to create a required text field where when someone opens the template it's obvious what variables need to be changed?  I want to do this without putting a red box around it or using a seperate unprintable layer that tells them what to do.  I'm looking for something like a form field, but one that exists in the InDesign file and not the PDF.

I hope that makes sense. Any help is appreciated.

Thanks.