I cannot find where to change the behavior of CorelCAD objects selection, when I select an object and attempt to click on another, I would expect to add the second object, and use shift click to unselect, but the behavior on mine, it unselects the first selected object to select only the last one clicked, it´s annoying for my drawing standards, because I have to use Shift pressed button to add from the second on, and also, if you try to select multiple, it unselect the previous selected objects. I Know that it is possible because I have other computers with CorelCAD with the correct selection behavior.
I Would guess that it would be at: User Preferences / Drafting Options / Entity Selection. But I tryed everywhere and I cannot correct that.
Please, if someone know where to change this settings, let me know.
You may have better response posting this in the CorelCAD section.
Thank you Eskimo! That helped me a lot! I even could find the answer to my problem already there!
I wish you success! There isn't a lot of traffic there, but I sometimes see responses directly from Corel personnel.