Namaste, iam Wendi Killian, Take it easy.
How Do I Make Diagonal Guides In Gimp? [Solved]
Hold the “Shift” key on your keyboard and move your mouse cursor in a diagonal direction away from the initial point. GIMP will draw a temporary guideline to show how the stripe will look as you move the mouse.
How to Create Custom Guides in GIMP (Angled & Shape Guides)
In this
GIMP Tutorial 21 Grids & Guides
GIMP
How to Position Guides Exactly in the GIMP Image Editor
But I’d still like to have a keyboard shortcut