Questions about transforming grease pencil strokes [2.82]

Hello, I’m preparing to start working on a webcomic made entirely with Grease Pencil. I’ve dabbled with the workflow of converting meshes to grease pencil objects, but now I also want to try doing everything in Grease Pencil right away, and so I have a few questions regarding transforming strokes.

1.) Is there a separate transform menu for the selected stroke? The only one I’m seeing is for the grease pencil object as a whole. I want to be able to see the location and rotation of a stroke’s pivot point.

2.) On a related note, is there a way to change the pivot point of the selected stroke? for example, I want to be able to rotate a stroke along its endpoint, such that said endpoint does not move. The only way I can seem to do so is by setting up a separate Grease Pencil object for each stroke, which doesn’t seem very efficient.

3.) Is there a way to snap the selected stroke’s endpoint to that of the nearest stroke during transformation? I have my “Snap to” option set to “Vertex”, but I’m guessing vertices in meshes aren’t the same as points in strokes?

Hi, did you finally solved the problem. I need to change the rotation center of a group of strokes. Can’t see how to do it,
Thanks