When we activate a simple editing command, such as “Copy”, Autocad converts the cursor into a small box called “selection box”, which we already talk about in chapter 2. The selection of objects with this cursor is as simple as pointing out the lines that form it and clicking. If we want to add an object to the selection, it is simply pointed out and clicked again, the command line window shows how many objects have been selected. If for some reason we have added the wrong object to the selection and we do not want to start the selection again, then we must point it out, press the “Shift” key and click, eliminating it from the selection , the dotted lines that distinguished it disappear. Once “ENTER” is pressed and, therefore, the selection of objects is concluded, the execution of the editing command continues, as will be seen throughout this chapter.
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