Text label along internal path?

How can I add a text label to my pattern pieces, such as along a seam line or along a designated internal path so that it can state something like "pocket placement line" or "zipper placement line", etc? An example of what I would like to do is shown in the red circles in the image attached.

Thank you.

Hi. I know about this request. But for now don't have plans to implement this any time soon.

Thanks.