Constrain a line with shift does not work when modifying

[PSLEBOW]

When creating a new line one can hold shift key and it will constrain the new line to 0°, 45°, 90°. When editing an existing line, the shift key has no effect.

Mac Sequoia, LibreOffice 25.8.0.4

Paul

[Hrbrgr]

What is your question?

[PSLEBOW]

I have a horizontal line on my diagram. I want to extend that line horizontally using the mouse to grab the endpoint. In PowerPoint, holding the shift key will force the line to remain horizontal. In LibreOffice that only happens when creating a new line. Is there a way of extending a horizontal line with the mouse in LibraOffice?

Thanks

Paul