Since we don't have a constraint system, direct dragging the rectangles won't modify the connecting lines.
Possible workaround:
drag the rectangle; drag the broken line end point to match the movement.
It really shows the benefit of adding a constraint solver.
Mykeldel wrote
Hi experts, I need to draw some electrical circuits where rectangles are interconnected with lines (representing bundles of cables). Is it possible to move a single rectangle during the project and have the lines connected to it remain attached to it and therefore atomatically lengthen or shorten in relation to the other rectangles that remain in place? Thank you in advance, kind regards, Mike