Using schematic editor
Whenever editing the parameter value of device, the schematic editor is freezing or dead. We need to click on the outside area of schematic editor.
As for beginner, it is hard to connect the devices with wire, we need to be more carefully in connection. It is sometime loosing the connection with rectangle box and give the errors.
eSim Simulating-an-Astable-Multivibrator 03-04 min 20-30 sec
You can resize the schematic.
Click on "view" open from the top toolbar and select "Fit on screen"