1. Is a known issue, it's because of changing status bar height when the auto save message appear.
A fixed version is released soon.
2. See
https://librecad.readthedocs.io/en/latest/guides/cmdline.htmlEspecially about using @ in the command line for relative coordinates.
And Calculator, what means, you can use formulas for coordinates.
e.g.:
rec
100,100
@280,300
100+17.5,194
@145,45
This creates a rectangle at 100,100, 280x300 and one at 117.5,194, 145x45
The rectangle command is still active after the second coordinate and the rectangle is created.
Watch the text above the command line and beside the mouse icon in the status bar, it always tell you what is expected next.
investing less than half an hour into Search function can save hours or days of waiting for a solution