gliss. text outside of staff

Universal Edition wants always the “gliss.” text outside of the staves. It would be nice to have this opportunity. I know: that is actually strange, but I have no choice.

In this case “gliss.” should be horizontal if the line is inside the staff, if the line is also outside, the text angle should be like the line.

For now, you can hide the text on the line itself from the properties panel, and add the text with the text tool…